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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Ester, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Ester impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Ester-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Ester Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(-)-(2S,3S)-Viridifloric Acid Ethyl Ester-d7 Stable Isotopes CS-T-102815 176712-53-1(Unlabelled) Enquire
(+)-cis-Vincaminic Acid Ethyl-d5 Ester Stable Isotopes CS-T-97105 Not Available Enquire
(+/-)-2-Propyl-4-pentenoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98512 Not Available Enquire
(±)-cis-9,10-Epoxy-12(Z)-octadecenoic acid methyl ester-d3 Stable Isotopes CS-T-97543 Not Available Enquire
(±)-trans-9,10-Epoxystearic Acid Methyl Ester-d3 Stable Isotopes CS-T-97541 Not Available Enquire
(1,3-Dimethylbutyl)ethylmalonic Acid-d5 Diethyl Ester Stable Isotopes CS-T-101471 Not Available Enquire
(11α,13E,17S)-9-O-Acetyl-17,20-dimethyl-15-oxo-2-(phenylsele... Stable Isotopes CS-T-97843 Not Available Enquire
(1R) Perindopril-d4 Benzyl Ester Stable Isotopes CS-T-102137 Not Available Enquire
(1R,2S,5R)-(-)-Menthol-d4 2,3,4-Tri-O-acetyl-b-D-glucuronide... Stable Isotopes CS-T-102775 Not Available Enquire
(1S)-Perindopril-d4 Benzyl Ester Stable Isotopes CS-T-102136 Not Available Enquire
(2,3,3a,4,7,7a-Hexahydro-2-methyl-1,3-dioxo-1H-isoindol-4-yl... Stable Isotopes CS-T-98371 Not Available Enquire
(20R)-17α,20-Dihydroxycholesterol-d7 Stable Isotopes CS-T-99605 17913-42-7(Unlabelled) Enquire
(2E)-2,4-Pentadienoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98522 Not Available Enquire
(2E)-2,4-Pentadienoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98521 2409-87-2(Unlabelled) Enquire
(2E,11α,13E,15S,17S)-11,15-Di-O-tetrahydropyranyl-17,20-dime... Stable Isotopes CS-T-97562 1316264-00-2 Enquire
(2E,4E)-2,4-Decadienoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-101631 Not Available Enquire
(2E,4E)-2,4-Decadienoic Acid Methyl Ester-d3 Stable Isotopes CS-T-101632 Not Available Enquire
(2R)-2-Methyl-butanoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-97314 Not Available Enquire
(2R)-2-Methyl-butanoic Acid Methyl Ester-d3 Stable Isotopes CS-T-97315 Not Available Enquire
(2R)-Sorbitan Monolauric Acid Ester-d22 (Major) Stable Isotopes CS-T-94450 1338-39-2 Unlabelled Enquire
(2R,3R)-2,3-Dimethyl-1-piperazinecarboxylic-d4 Acid 1,1-Dime... Stable Isotopes CS-T-100391 1240583-15-6(Unlabeled) Enquire
(2R,3S)-rel-3-Hexyl-2-oxiranenonanoic acid methyl ester-d3 Stable Isotopes CS-T-97463 Not Available Enquire
(2S)-2-Methyl-butanoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-97312 Not Available Enquire
(2S)-2-Methyl-butanoic Acid Methyl Ester-d3 Stable Isotopes CS-T-97313 Not Available Enquire
(2S,3S)-[2-[3-(Acetoxy)-3,4-dihydro-2-(4-methoxyphenyl)-4-ox... Stable Isotopes CS-T-101950 1246812-21-4 Enquire
(2S,3S)-3-[[[(1S)-1-[[(4-Azidobutyl)amino]carbonyl]-3-methyl... Stable Isotopes CS-T-100979 Not Available Enquire
(2S,4R)-2-[(Dimethylamino)carbonyl]-4-[(methylsulfonyl)oxy]-... Stable Isotopes CS-T-101487 1246818-66-5 Enquire
(2S,4R)-2-[(Dimethylamino)carbonyl]-4-hydroxy-1-pyrrolidinec... Stable Isotopes CS-T-101488 1246814-87-8 Enquire
(2S,4S)-4-(Acetylthio)-2-[(dimethylamino)carbonyl]-1-pyrroli... Stable Isotopes CS-T-101944 1246816-04-5 Enquire
(2S,4S)-4-(Phenylthio)-1,2-pyrrolidinedicarboxylic-d5 Acid 1... Stable Isotopes CS-T-101014 Not Available Enquire
(2S,4S)-4-(Phenylthio)-1,2-pyrrolidinedicarboxylic-d5 Acid 1... Stable Isotopes CS-T-101013 Not Available Enquire
(2S,5R)-3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane... Stable Isotopes CS-T-97570 Not Available Enquire
(2Z)-2-Butenedioic Acid 1-Methyl Ester-d3 Stable Isotopes CS-T-101759 1266402-66-7 Enquire
(2Z)-3-Methyl-4-(benzyloxy)-2-butenoic-d3 Acid Methyl Ester Stable Isotopes CS-T-102883 449759-41-5(Unlabelled) Enquire
(2Z)-Methyl 4-Bromo-2-(methoxyimino)-3-oxo-butanoic Acid Est... Stable Isotopes CS-T-100044 Not Available Enquire
(3b,5b,7a,12a)-3,7,12-Trihydroxycholan-2,2,3,4,4-d5-24-oic A... Stable Isotopes CS-T-102746 28050-54-6(Unlabelled) Enquire
(3R)​-3-​[[(1,​1-​Dimethylethyl)​dimethylsilyl]​oxy]​-​1-​py... Stable Isotopes CS-T-100385 Not Available Enquire
(3R)​-3-​Hydroxy-1-​pyrrolidinecarboxyli​c Acid Phenylmethyl... Stable Isotopes CS-T-100227 Not Available Enquire
(3R)-3,6-Dihydro-2H-1,4-thiazine-3,5-dicarboxylic Acid 3-Eth... Stable Isotopes CS-T-101513 Not Available Enquire
(3R,5S)-rel-Fluvastatin-d7 tert-Butyl Ester Stable Isotopes CS-T-97498 Not Available Enquire
(3R-cis)-(4-Methyl-3-pyrrolidinyl)-carbamic Acid 1,1-Dimethy... Stable Isotopes CS-T-99970 Not Available Enquire
(3S,5S,6R)-3-[(3R)-4-Bromo-3-hydroxybutyl]-2-oxo-5,6-dipheny... Stable Isotopes CS-T-102478 869111-53-5(Unlabelled) Enquire
(4-((3-Acetamidopropyl)(tert-butoxycarbonyl)amino)butyl)(3-(... Stable Isotopes CS-T-102768 Not Available Enquire
(4-Benzylpiperazin-1-yl)acetic Acid Ethyl Ester-d8 Stable Isotopes CS-T-101837 23173-76-4 Enquire
(4R)-4-[(R)-Hydroxyphenylmethyl]-2,2-dimethyl-3-oxazolidinec... Stable Isotopes CS-T-97423 502483-52-5 Enquire
(4R,5S)-4-(2-Hydroxypropan-2-yl)-2,2,5-trimethyl-1,3-dioxola... Stable Isotopes CS-T-102797 Not Available Enquire
(6E)-7-[3-(4-Fluorophenyl)-1-(1-methylethyl)-1H-indol-2-yl]-... Stable Isotopes CS-T-101376 Not Available Enquire
(6E)-8-Methyl-6-nonenoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98538 Not Available Enquire
(6E)-8-Methyl-6-nonenoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98537 Not Available Enquire
(8Z,11Z,14Z,17Z)-Eicosatetraenoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98585 Not Available Enquire
(9E,11E,13E,15E)-9,11,13,15-Octadecatetraenoic Acid Ethyl-d5... Stable Isotopes CS-T-98528 Not Available Enquire
(9E,11E,13E,15E)-9,11,13,15-Octadecatetraenoic Acid Methyl-d... Stable Isotopes CS-T-98527 Not Available Enquire
(9Z,12Z)-9,12-Octadecadienoic Acid 1-[[(1-Oxohexadecyl)oxy]m... Stable Isotopes CS-T-98327 Not Available Enquire
(all-Z)-6,9,12,15,18-Heneicosapentaenoic Acid Methyl Ester-d... Stable Isotopes CS-T-98570 Not Available Enquire
(All-Z)-7,10,13,16,19-Docosapentaenoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98590 Not Available Enquire
(All-Z)-7,10,13,16,19-Docosapentaenoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98591 Not Available Enquire
(All-Z)-8,11,14,17-Eicosatetraenoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98584 Not Available Enquire
(all-Z)-9,12,15-Octadecatrienoic Acid 1-[[(1-Oxohexadecyl)ox... Stable Isotopes CS-T-98328 Not Available Enquire
(aZ)-a-(Methoxyimino)-2-methylbenzeneacetic-d7 Acid Methyl E... Stable Isotopes CS-T-102564 144106-03-6(Unlabelled) Enquire
(cis/trans)-2-(4-Benzofurazanylmethylene)-3-oxo-butanoic Aci... Stable Isotopes CS-T-101862 1185237-60-8 Enquire
(E)-2-[(2-Chlorophenyl)methylene]-4-[2-(1,3-dihydro-1,3-diox... Stable Isotopes CS-T-101679 Not Available Enquire
(E)-2-[2-(Bromomethyl)phenyl]-2-(methoxyimino)acetic-d6 Acid... Stable Isotopes CS-T-96264 Not Available Enquire
(E)-α-(Methoxyimino)-2-methylbenzeneacetic-d7 Acid Methyl Es... Stable Isotopes CS-T-96214 Not Available Enquire
(E,E)-4,6-Dimethyl-2,4-heptadienoic Acid Ethyl-d5 Ester Stable Isotopes CS-T-98606 Not Available Enquire
(E,E)-4,6-Dimethyl-2,4-heptadienoic Acid Methyl-d3 Ester Stable Isotopes CS-T-98605 Not Available Enquire
(E/Z)-2-Propyl-2,4-pentadienoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98515 Not Available Enquire
(E/Z)-2-Propyl-2,4-pentadienoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98513 Not Available Enquire
(E/Z)-2-Propyl-2-pentenoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98516 Not Available Enquire
(E/Z)-2-Propyl-2-pentenoic Acid Methyl Ester-d3 Stable Isotopes CS-T-98514 Not Available Enquire
(R)-N-(1-Carboxyethyl-13C3)-D-norvaline 1-Ethyl Ester Stable Isotopes CS-T-97715 Not Available Enquire
(S)-2-Di(tert-butyloxycarbonyl)amino-4-cyano-13C-butanoic Ac... Stable Isotopes CS-T-96977 Not Available Enquire
(S)-Carbidopa Methyl-d3 Ester N-cyclohexylidene Stable Isotopes CS-T-100688 Not Available Enquire
(S)-Repaglinide Ethyl Ester-d10 (Repaglinide Impurity) Stable Isotopes CS-T-97188 Not Available Enquire
(Z)-2-[(2-Chlorophenyl)methylene]-4-[2-(1,3-dihydro-1,3-diox... Stable Isotopes CS-T-101680 Not Available Enquire
(Z)-2-[2-(Tritylamino)thiazol-4-yl]-2-(trityloxyimino)acetic... Stable Isotopes CS-T-97120 Not Available Enquire
(Z)-α-[(Triphenylmethoxy)imino]-2-[(triphenylmethyl)amino]-4... Stable Isotopes CS-T-97124 Not Available Enquire
(Z,Z)-5,11-Eicosadienoic Acid Ethyl Ester-d5 Stable Isotopes CS-T-98586 Not Available Enquire
(αR)-4-Fluoro-α-[(3S)-4-methyl-3-[[(5-methyl-3-isoxazolyl)ca... Stable Isotopes CS-T-97503 Not Available Enquire
[(1S)-3-Methyl-1-[[(2S)-2-methyloxiranyl]carbonyl]butyl]-car... Stable Isotopes CS-T-100022 Not Available Enquire
[(1S,2R)-1-Benzyl-2-hydroxy-3-[isobutyl-[(4-aminophenyl)sulf... Stable Isotopes CS-T-97763 1146967-63-6 Enquire
[(1S,2R)-1-Benzyl-2-hydroxy-3-[isobutyl-d9-[(4-nitrophenyl)s... Stable Isotopes CS-T-97765 1146967-62-5 Enquire
[(1S,2R)-3-[[(4-Nitrophenyl)sulfonyl](2-methylpropyl)amino]-... Stable Isotopes CS-T-97261 1217700-81-6 Enquire
[2,3-Dichloro-4-(1-oxobutyl)phenoxy]-acetic Acid Ethyl Ester... Stable Isotopes CS-T-102520 2977-51-7(Unlabelled) Enquire
[2-[(2,6-Dimethylphenyl)amino]-2-oxoethyl]carbamic Acid-d6 1... Stable Isotopes CS-T-100544 Not Available Enquire
[2-[(Tetrahydro-2H-pyran-2-yl)oxy]ethyl]carbamodithioic Acid... Stable Isotopes CS-T-102032 Not Available Enquire
[2S-(2α,3β,5α)]-3-(Azidomethyl)-3-methyl-7-oxo-4-thia-1-azab... Stable Isotopes CS-T-100814 Not Available Enquire
[4-[2-[[(3-Ethyl-d5-2,5-dihydro-4-methyl-2-oxo-1H-pyrrol-1-y... Stable Isotopes CS-T-99245 1217029-88-3 Enquire
1-​(2,​3,​5-​Tri-​O-​acetyl-​β-​D-​ribofuranosyl)​-​1,​2,​4-... Stable Isotopes CS-T-102263 Not Available Enquire
1-​(2,​3,​5-​Tri-​O-​acetyl-​β-​D-​ribofuranosyl)​-​1,​2,​4-... Stable Isotopes CS-T-102262 Not Available Enquire
1-​(2,​3,​5-​Tri-​O-​acetyl-​β-​D-​xylofuranosyl)​-​1H-​1,​2... Stable Isotopes CS-T-99773 Not Available Enquire
1-​Cyclopropyl-​6,​7-​difluoro-​1,​4-​dihydro-​8-​methoxy-​4... Stable Isotopes CS-T-100581 Not Available Enquire
1-​Ethyl-​1,​4-​dihydro-​7-​methyl-​4-​oxo-​1,​8-​naphthyrid... Stable Isotopes CS-T-100319 Not Available Enquire
1-(2,3,5-Tri-O-benzoyl-ß-D-13C5-ribofuranosyl)-1,2,4-triazol... Stable Isotopes CS-T-96456 Not Available Enquire
1-(Nitromethyl)cyclohexane-d6-acetic Acid Ethyl Ester Stable Isotopes CS-T-102184 Not Available Enquire
1,​3-Dihydro-​1,​3-​dioxo-2H-iIsoindole-​2-​15N-​2-​acetic-​... Stable Isotopes CS-T-102364 113638-95-2 Enquire
1,1,1-Trifluoromethanesulfonic Acid 2-(2-Propen-1-yl)phenyl ... Stable Isotopes CS-T-102008 Not Available Enquire
1,2,3,4-Tetrahydro-6-methyl-2,4-bis(2-nitrophenyl)-5-pyrimid... Stable Isotopes CS-T-102039 Not Available Enquire
1,2,4-Benzenetricarboxylic Acid 1-(2-ethylhexyl) Ester-d17 Stable Isotopes CS-T-98268 Not Available Enquire
1,2,4-Benzenetricarboxylic Acid 1,2-Bis(2-ethylhexyl) Ester-... Stable Isotopes CS-T-98267 Not Available Enquire
1,2,4-Benzenetricarboxylic Acid 1,4-Bis(2-ethylhexyl) Ester-... Stable Isotopes CS-T-98265 Not Available Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
17α-HYDROXYPROGESTERONE SOLUTION AMPOLA 1.0 MG/ML API CS-O-48163 68-96-2 Enquire
Campesterol API CS-P-00369 474-62-4 In Stock
Cholesterol API CS-O-06238 57-88-5 In Stock
Cholesteryl oleate API CS-M-42996 303-43-5 Enquire
Dydrogesterone API CS-O-01322 152-62-5 In Stock
Medroxyprogesterone Acetate API CS-O-01829 71-58-9 In Stock
Progesterone API CS-O-10868 57-83-0 In Stock
Progesterone API CS-O-01864 57-83-0 In Stock
Segesterone Acetate API CS-ED-41826 7759-35-5 Enquire
Cholesteryl docosahexaenoate API CS-AE-00048 Not Available Enquire
Oxymesterone API CS-ED-02488 145-12-0 Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
20α-Dihydrodydrogesterone Metabolite CS-T-89984 4243-74-7 In Stock
21-hydroxyprogesterone Metabolite CS-O-08020 64-85-7 In Stock
2-Ethylpentanoic Acid Methyl Ester Metabolite CS-T-92487 816-16-0 Enquire
3,7-diketo,12-hydroxy methyl ester of Cholic Acid Metabolite CS-P-07538 25480-14-2 Enquire
3-keto,7,12-hydroxy methyl ester of Cholic Acid Metabolite CS-P-07539 14772-99-7 Enquire
7-keto methyl ester of glicocholate metabolite Metabolite CS-P-07540 115515-29-2 Enquire
Amphotericin B Methyl Ester 90% Metabolite CS-T-48168 36148-89-7 In Stock
Benzenesulfonic Acid Isopropyl Ester Metabolite CS-O-07355 6214-18-2 In Stock
Cetirizine Methyl Ester Metabolite CS-O-06030 83881-46-3 In Stock
Clopidogrel Ethyl Ester Sulfate Metabolite CS-P-07397 1332612-57-3 Enquire
Diclofenac ethyl ester Metabolite CS-O-07099 15307-77-4 In Stock
Diclofenac Methyl Ester Metabolite CS-O-07098 15307-78-5 In Stock
Docosapentaenoic acid methyl ester Metabolite CS-O-34892 108698-02-8 Enquire
L-Glutamic acid γ-ethyl ester Metabolite CS-O-03479 1119-33-1 In Stock
Mycophenolic Acid Ethyl Ester Metabolite CS-O-16842 32483-51-5 In Stock
N-Trityl Candesartan Ethyl Ester Metabolite CS-O-03546 856414-35-2 In Stock
Valsartan Methyl Ester Metabolite CS-O-10333 137863-17-3 In Stock


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(-)-Camphorsulfonic Acid Methyl Ester Impurity CS-O-45431 83603-04-7 Enquire
(1S,3S,5S)-3-(Aminocarbonyl)-2-azabicyclo[3.1.0]hexane-2-car... Impurity CS-CO-00016 361440-67-7 In Stock
(2R,5R) Emtricitabine Menthyl Ester Impurity CS-O-44187 1773498-61-5 Enquire
(3b)-7-Dehydro Cholesterol Impurity CS-T-51713 434-16-2 In Stock
(3-Fluoro-4-morpholin-4-ylphenyl)carbamic acid benzyl ester Impurity CS-O-31589 168828-81-7 In Stock
(3α,5β,6α)-6-ethyl-3-hydroxy-7-oxo-cholan-24-oic Acid Ethyl ... Impurity CS-O-53732 459789-97-0 Enquire
(4R)-Etapenem Open-ring methyl ester Impurity CS-O-48683 Not Available Enquire
(4S)-Etapenem cyclomethyl ester Impurity CS-O-48682 Not Available Enquire
(4S,6S)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Ac... Impurity CS-T-51365 196085-85-5 In Stock
(5-PyriMidinecarboxylicacid, 4-[[(3-chloro-4-Methoxyphenyl)M... Impurity CS-O-32414 330785-81-4 In Stock
(5R)-Rosuvastatin Methyl Ester Impurity CS-T-85734 1776088-23-3 In Stock
(R)-3-Hydroxy-2-benzylpropanoic acid Ethyl ester Impurity CS-O-46345 87884-40-0 Enquire
(R)-Sitagliptin Methyl Ester Tartaric Acid Impurity Impurity CS-O-53710 1384431-02-0 Enquire
(R)-Sitagliptin Methyl-Ester Hydrochloride Impurity CS-EO-01677 1374985-05-3 In Stock
(R)-Sitagliptin Methyl-Ester Impurity Impurity CS-P-00280 881995-69-3 In Stock
(R)-Sitagliptin N-Boc-Methyl-Ester Impurity Impurity CS-EO-00173 881995-73-9 In Stock
(S)-(+)-Ibuprofen Propylene Glycol Ester Impurity CS-EO-01027 95093-58-6 In Stock
(S)-Carbidopa Methyl Ester N-Cyclohexylidene Impurity CS-T-71470 934371-48-9 Enquire
(S)-Ibuprofen Methyl Ester Impurity CS-O-52583 81576-55-8 Enquire
(S)-Ketoprofen Ethyl Ester Impurity CS-EO-03138 136656-97-8 Enquire
(S)-Ketoprofen Sorbitol Ester Impurity CS-O-56948 1147275-54-4 Enquire
(S)-Naproxen 2-Propyl Ester Impurity CS-T-59134 156967-24-7 In Stock
(S)-Repaglinide Ethyl Ester (Repaglinide Impurity) Impurity CS-T-41582 147770-06-7 In Stock
(S)-Salbutamol Methyl Ester Impurity Impurity CS-O-59382 165882-31-5 Enquire
(S,S,S)-2-Azabicyclo[3,3,0]-octane-carboxylic acid benzylest... Impurity CS-O-32393 87269-87-2 Enquire
[[(1R)-2-(6-Amino-9H-purin-9-yl)-1-methylethoxy]methyl]monop... Impurity CS-T-66736 379270-35-6 Enquire
[R-(R*,S*)]-α-[(1-Carboxyethyl)amino]-γ-oxo-benzenebutanoic ... Impurity CS-T-71142 105167-27-9 In Stock
1-(N-(S-1-Carboxy-3-cyclohexylpropyl)-L-Alanyl) L-Proline-et... Impurity CS-O-56402 ---- Enquire
1,2-dimorpholino-Roxadustat ethyl ester impurity Impurity CS-O-59281 ---- Enquire
17-Hydroxy-21-Iodoprogesterone Impurity CS-EO-03183 4470-79-5 Enquire
17α-Hydroxy Progesterone Impurity CS-O-10309 68-96-2 In Stock
19-Carboxy Cholesterol Impurity CS-T-70998 26319-96-0 In Stock
1-Alpha-Hydroxy-7-dehydrocholesterol Impurity CS-O-58362 43217-89-6 Enquire
1-Chloro Roxadustat Butyl ester Impurity CS-O-54733 808116-08-7 Enquire
1-Chloro Roxadustat Isopropyl ester Impurity CS-O-54732 2244489-60-7 Enquire
1-Chloro Roxadustat methyl ester Impurity CS-O-54731 1421312-33-5 Enquire
1-oxo Roxadustat Butyl ester Impurity CS-O-54729 808115-51-7 Enquire
1-oxo Roxadustat ethyl ester Impurity CS-O-44306 2244489-54-9 Enquire
1-oxo Roxadustat Isopropyl ester Impurity CS-O-54728 2244489-57-2 Enquire
1-oxo Roxadustat methyl ester Impurity CS-O-54727 1421312-32-4 Enquire
2-(3,4-Dichlorophenyl)-6-benzoxazolecarboxylic acid methyl e... Impurity CS-O-40355 2306320-67-0 In Stock
2,6-bis(methylene)-Medroxyprogesterone acetate Impurity CS-P-09207 136803-81-1 Enquire
2,6-bismethyl-Medroxyprogesterone acetate Impurity CS-P-09208 Not Available Enquire
2-[(2-Chlorophenyl)methylene]-4-[2-(1,3-dihydro-1,3-dioxo-2H... Impurity CS-T-72617 400024-08-0 Enquire
2-[6-(Ethylamino)-3-(ethylimino)-2,7-dimethyl-3H-xanthene-9-... Impurity CS-H-00292 989-38-8 Enquire
20-β-Dihydroprogesterone Impurity CS-T-18985 145-15-3 In Stock
25-Hydroxy Cholesterol Impurity CS-O-10959 2140-46-7 In Stock
26-Hydroxycholesterol 3-sulfate Impurity CS-O-56314 ---- Enquire
2-Amino-4,5-bis(2-methoxyethoxy)benzoic acid ethyl ester Impurity CS-O-32359 183322-17-0 In Stock
2-Bromo-2-methylpropanoic acid isopropyl ester Impurity CS-T-103267 51368-55-9 Enquire
2-Chloro-2-(phenylhydrazono)acetic Acid Ethyl Ester Impurity CS-T-96099 28663-68-5 Enquire
2-Propyl-1H-imidazol -4,5-dicarboxylic acid  4,5-diethyl est... Impurity CS-T-18254 144689-94-1 In Stock
3-(Methoxy-phenyl-methylene)2-oxo-1-propionyl-2,3-dihydro-1H... Impurity CS-O-44852 Not Available Enquire
3-Amino-4-propoxy-2,3-dihydroxypropyl ester Benzoic acid Impurity CS-T-95814 2102411-30-1 Enquire
3-Descyano Febuxostat Ethyl Ester Impurity CS-T-62866 144060-97-9 In Stock
3-Hydroxy-2-oxobutyl Azilsartan Ester Impurity CS-O-38824 1883681-10-4 In Stock
3-Oxo-1,2-benzoisothiazoline-2-acetic Acid Methyl Ester 1,1-... Impurity CS-T-60062 6639-62-9 In Stock
4-(Bromomethyl)phenylaceticacidphenacylester Impurity CS-O-44531 Not Available Enquire
4-(Butylamino)benzoic Acid Ethyl Ester Impurity CS-T-09361 94-32-6 Enquire
4-[[5-cyclopentyloxycarbonylamino-2-[(3-methoxy benzoic acid... Impurity CS-O-44299 Not Available Enquire
4-[bis-(5-amino-1-methyl indol-3-yl)methyl]-3-methoxy benzoi... Impurity CS-O-44326 Not Available Enquire
4-[Bis-(5-cyclopentyloxy carbonyl amino-1-methyl indol-3-yl)... Impurity CS-O-44293 Not Available Enquire
4-{5-[Bis-(2-hydroxy-ethyl)-amino]-1-methyl-1H-benzoimidazol... Impurity CS-O-31946 3543-74-6 In Stock
4-Methoxycinnamic Acid Ethyl Ester Impurity CS-T-32309 1929-30-2 Enquire
4-Methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzoic aci... Impurity CS-O-13005 917392-54-2 In Stock
4ß-Hydroxy Cholesterol Impurity CS-T-79575 17320-10-4 In Stock
5-Hydroxy-1-(4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxylic... Impurity CS-O-54619 75020-41-6 Enquire
6-((methyl(phenyl)amino)methyl)-Medroxyprogesterone acetate Impurity CS-P-09206 2128317-86-0 Enquire
6-Amino-3,4-Benzo-12-crown-4-toluenoate ethyl ester hydrochl... Impurity CS-O-49668 1403772-39-3 (Freebase) Enquire
6-ethynylnicotinic acid ethyl ester Impurity CS-O-56577 220882-43-9 In Stock
6-Keto Progesterone Impurity CS-O-13073 2243-08-5 In Stock
6-O-Methyl Mycophenolic Acid Methyl Ester Impurity CS-T-34443 60435-90-7 In Stock
6ß-Hydroxyfluoxymesterone Impurity CS-B-00283 88936-08-7 Enquire
6-β-Hydroxy Medroxy Progesterone 17-Acetate Impurity CS-T-56126 984-47-4 Enquire
7alpha-Hydroxyprogesterone Impurity CS-ED-41723 27534-93-6 Enquire
7-epi-Obeticholic Acid 3-Obeticholate Ester Impurity CS-T-83206 1908444-28-9 In Stock
7-Ethyl tryptophol Etodolac ester impurity Impurity CS-O-46639 2716047-66-2 Enquire
9,11,13-Tricis-retinoic acid Methyl Ester Impurity CS-O-59721 68070-31-5 Enquire
9,11-DICIS-RETINOIC ACID METHYL ESTER Impurity CS-O-59720 213136-87-9 Enquire
Aceclofenac Tert-Butyl Ester Impurity CS-P-00508 139272-68-7 In Stock
Acitretin Ethyl Ester Impurity CS-O-03705 54350-48-0 In Stock
Adapalene 5-Bromo-2-Methoxyphenyl Methyl Ester Impurity CS-O-51788 Not Available Enquire
Adapalene EP impurity B Methyl ester Impurity CS-EO-03279 Not Available Enquire
Adapalene Impurity A Dimethyl ester Impurity CS-O-45692 161912-38-5 Enquire
Alpha lipoic acid Methyl ester Impurity CS-EO-03044 46236-19-5 In Stock
Ambrisentan Methyl Ester Impurity CS-MM-09417 1106685-61-3 In Stock
Apalutamide Methyl ester Impurity Impurity CS-O-45202 1950587-19-5 Enquire
Apixaban Isopropyl Ester Impurity Impurity CS-O-36474 Not Available In Stock
Apixaban Methyl Ester Impurity Impurity CS-O-15286 1074365-84-6 In Stock
Atogepant Ester Impurity Impurity CS-O-60518 1375541-24-4 Enquire
Atorvastatin 2-Fluoro t-Butyl Ester Impurity CS-O-15198 1099474-28-8 In Stock
Atorvastatin Acid Methyl Ester Impurity CS-O-07280 345891-62-5 In Stock
Atorvastatin Acid t-Butyl Ester Impurity CS-O-07281 134395-00-9 In Stock
Atorvastatin Di-acetonide tert-Butyl Ester Impurity CS-T-102321 1116118-82-1 Enquire
Atorvastatin Ethyl Ester Impurity Impurity CS-O-07278 1146977-93-6 In Stock
Atorvastatin Tri-acetonide tert-Butyl Ester Impurity CS-O-47424 Not Available Enquire
Atracurium cis-Quaternary methyl ester (Chloride) Impurity CS-EO-03356 1075726-87-2 (Freebase) Enquire
Avanafil Dimer Ester Impurity Impurity CS-O-52582 Not Available Enquire
Avatrombopag Ester Impurity Impurity CS-O-58620 570403-14-4 Enquire
Avatrombopag Ester N,N-dimethylformamide Impurity Impurity CS-EO-01762 ---- Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1R,3R)-9H-pyrido[3,4-B]indole-3-carboxylic acid, 1,2,3,4-te... Intermediate CS-O-20035 171752-68-4 In Stock
(2R,5R)-5-Hydroxy[1,3]oxathiolane-2-carboxylic Acid L-Mentho... Intermediate CS-O-31943 147126-62-3 In Stock
(aS,3S)-a-[(tert-Butyloxycarbonyl)amino]-2-oxo-3-pyrrolidine... Intermediate CS-T-50142 328086-60-8 In Stock
(S)-3-Chloroalanine Methyl Ester Hydrochloride Intermediate CS-CS-00026 112346-82-4 In Stock
2-(2-bromoethyl)malonic acid monoethyl ester Intermediate CS-O-57397 2114002-14-9 Enquire
2-(Benzyloxy)ethylboronic acid pinacol ester Intermediate CS-AC-06377 137297-51-9 In Stock
20α-Hydroxy Cholesterol Intermediate CS-T-79481 516-72-3 In Stock
2-Carboxy Ethyl 3 Cyano-5 Methyl Hexanoicacid Ethyl Ester Intermediate CS-O-14923 186038-82-4 In Stock
2-Hydroxymethylmorpholine-4-carboxylic Acid tert-Butyl Ester Intermediate CS-T-79434 135065-69-9 In Stock
3,4-Epoxycyclohexane carboxylic acid, methyl ester Intermediate CS-CF-00019 41088-52-2 In Stock
3-Formyl-crotonic acid Methyl ester Intermediate CS-O-51992 96928-85-7 Enquire
3-Quinolinecarboxylic acid, 1,4-dihydro-7-methyl-4-oxo-, eth... Intermediate CS-O-55451 77721-00-7 Enquire
3-Quinolinecarboxylic acid, 6-[(ethylphenylamino)sulfonyl]-1... Intermediate CS-O-55454 853139-10-3 Enquire
3-Quinolinecarboxylic acid, 7-chloro-1,4-dihydro-4-oxo-, met... Intermediate CS-O-55452 133514-23-5 Enquire
3-Quinolinecarboxylic acid, 7-fluoro-1,4-dihydro-4-oxo-, met... Intermediate CS-O-55453 1448259-82-2 Enquire
4-(4-Chloro-1-oxobutyl)-α,α-dimethylbenzeneacetic Acid Methy... Intermediate CS-T-12201 154477-54-0 In Stock
4-Hydroxyphenylboronic acid pinacol ester Intermediate CS-M-24146 269409-70-3 In Stock
4-methylbiphenyl-2-carboxylic acid methyl ester Intermediate CS-O-31540 114772-34-8 In Stock
5-(Aminosulfonyl)-2-methoxy-benzoic Acid Methyl Ester Intermediate CS-T-03473 33045-52-2 In Stock
Alectinib acid tert-butyl ester Intermediate Intermediate CS-T-96144 1256584-77-6 Enquire
Cetirizine Ethyl Ester Intermediate CS-T-10981 246870-46-2 In Stock
Deferasirox Methyl Ester Intermediate CS-T-14728 1266741-05-2 In Stock
Dehydropitavastatin Ethyl Ester Intermediate CS-O-31579 254452-91-0 In Stock
D-Tryptophan Methyl Ester Hydrochloride Intermediate CS-M-57693 14907-27-8 In Stock
Febuxostat Ethyl Ester Intermediate CS-O-31552 160844-75-7 In Stock
Indomethacin 1,3-dioxolan ester Intermediate CS-O-49781 22094-04-8 In Stock
L-Arginine Methyl Ester Dihydrochloride Intermediate CS-O-10890 26340-89-6 In Stock
L-DOPA Methyl Ester Hydrochloride Intermediate CS-T-53966 1421-65-4 In Stock
L-Leucine Methyl Ester Hydrochloride Intermediate CS-O-10821 7517-19-3 In Stock
L-Proline t-butyl ester Intermediate CS-M-47114 2812-46-6 In Stock
L-Serine Ethyl Ester Hydrochloride Intermediate CS-DK-00023 26348-61-8 In Stock
L-Valine,N-[(2'-cyano[1,1'-biphenyl]-4-yl)methyl]-, methyl e... Intermediate CS-O-32349 482577-59-3 In Stock
Methoxyboronic acid pinacol ester Intermediate CS-T-81367 1195-66-0 In Stock
Methyl Ester Candersartan Reduzate Intermediate CS-DT-00008 136304-78-4 In Stock
Methylboronic Acid Pinacol Ester Intermediate CS-DJ-00392 94242-85-0 In Stock
N-Acetyl Diethyl Ester Fingolimod Impurity Intermediate CS-T-18056 162358-08-9 In Stock
N-a-Fmoc-L-aspartic acid ß-t-butyl ester Intermediate CS-M-29424 71989-14-5 In Stock
Regorafenib carbamic Acid Phenethyl Ester Intermediate Intermediate CS-O-48227 519028-33-2 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-Hydroxypyrene beta-D-Glucuronide Methyl Ester Glucuronide CS-T-79659 ---- Enquire
1-Naphthol 2,3,4-Tri-O-acetyl-beta-D-glucuronide Methyl Este... Glucuronide CS-T-58819 18404-55-2 Enquire
2,3,4-tribenzoate 1-(2,2,2-trifluoro-N-phenylethanimidate)- ... Glucuronide CS-O-49982 827347-99-9 Enquire
2,3,4-Tri-O-acetyl-D-glucuronic Acid Methyl Ester Glucuronide CS-T-87225 3082-95-9 In Stock
2,3,4-Tri-O-benzoyl-D-glucuronic Acid Methyl Ester Glucuronide CS-T-62251 201789-32-4 Enquire
2,3,4-tris(2-propenyl carbonate)-2-propenyl ester-α-D-Glucop... Glucuronide CS-O-49981 609768-91-4 Enquire
2-Nitrophenyl 2,3,4-Tri-O-acetyl-Beta-D-glucuronide, Methyl ... Glucuronide CS-T-59591 55274-44-7 Enquire
3-(Acetyloxy)-5-iodophenol-2',3',4'-tri-O-acetyl-beta-D-gluc... Glucuronide CS-T-47028 490028-21-2 Enquire
4-Aminophenyl 2,3,4-Tri-O-acetyl-Beta-D-glucuronide Methyl E... Glucuronide CS-T-48029 25218-22-8 Enquire
4-Iodophenyl 2,3,4-Tri-O-acetyl-beta-D-glucuronide Methyl Es... Glucuronide CS-T-56756 490028-18-7 Enquire
5-Iodoresorcinol-2',3',4'-tri-O-acetyl-beta-D-glucuronide Me... Glucuronide CS-T-56759 490028-20-1 Enquire
7-Hydroxy Coumarin 2,3,4-Tri-O-acetyl-Beta-D-glucuronide Met... Glucuronide CS-T-55916 168286-97-3 Enquire
7-Hydroxy Coumarin-Beta-D-Glucuronide Methyl Ester Glucuronide CS-T-55914 1176514-11-6 Enquire
Abacavir 5-(2,3,4-Tri-O-isobytyryl)-ß-D-glucuronic Acid Meth... Glucuronide CS-BI-00037 ---- Enquire
Acetobromo-a-D-glucuronic Acid Methyl Ester Glucuronide CS-T-46991 21085-72-3 In Stock
Acetyldiethylstilbestrol 2,3,4-Tri-O-acetyl-Beta-D-glucuroni... Glucuronide CS-T-47207 40269-22-5 Enquire
Androsterone-beta-D-Glucuronide Triacetate Methyl Ester Glucuronide CS-TA-17991 21238-41-5 Enquire
Carbonochloridothioic acid,S-ethyl ester Glucuronide CS-ZG-92023 2941-64-2 Enquire
Cortisol 21-Beta-D-Glucuronide Methyl Ester 2,3,5-Triacetate Glucuronide CS-T-91333 24562-21-8 Enquire
Desacetyl Bisacodyl beta-D-Glucuronide Methyl Ester Glucuronide CS-T-96004 Not Available Enquire
D-Glucuronal 3,4-Diacetate Methyl Ester Glucuronide CS-T-55359 34296-99-6 Enquire
Ethyl 2,3,4-Tri-O-acetyl-Beta-D-glucuronide Methyl Ester Glucuronide CS-T-54607 77392-66-6 Enquire
Mycophenolic Acid Acyl-beta-D-glucuronide Allyl Ester Glucuronide CS-T-59025 860615-39-0 Enquire
p-Coumaric Acid 2,3,4-Tri-O-Acetyl-Beta-D-glucuronide Methyl... Glucuronide CS-T-91989 866417-47-2 Enquire
p-Cresol Glucuronide Methyl Ester Triacetate Glucuronide CS-T-90132 92420-85-4 Enquire
trans-3'-Benzoyloxy Cotinine 2,3,4-Tri-O-acetyl-N-beta-D-glu... Glucuronide CS-T-48727 146490-58-6 Enquire
Trans-3'-Hydroxycotinine-O-(4-deoxy-4,5-didehydro)--D-glucur... Glucuronide CS-T-55905 1217540-34-5 Enquire
Zomepirac Acyl-O-beta-D-glucuronide 2-Propenyl Ester Glucuronide CS-T-87937 860615-41-4 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S)-4-Phenyl-D-proline ethyl ester Fine Chemicals CS-O-51815 1820999-06-1 Enquire
(Methyl)(2-aminobenzyl)carbamic acid tert-butyl ester Fine Chemicals CS-O-49955 868783-63-5 Enquire
(S)-(+)-2-Chlorophenylglycine methyl ester Fine Chemicals CS-O-32348 141109-14-0 In Stock
2-(6-Bromo-hexyl)-Malonic acid diethyl ester Fine Chemicals CS-O-54321 6557-85-3 Enquire
2,2-Diethoxyacetimidic Acid Methyl Ester Fine Chemicals CS-O-41205 76742-48-8 In Stock
2,4-Difluoro-benzoic acid methyl ester Fine Chemicals CS-DV-01293 106614-28-2 In Stock
2-Benzoylbenzoic acid methyl ester Fine Chemicals CS-CF-00024 606-28-0 In Stock
2-bromo-3-cyanobenzeneboronic acid-1,3-Propane diol Ester Fine Chemicals CS-O-56401 ---- Enquire
2-Methyl-2-propenoic acid ethyl ester Fine Chemicals CS-O-15603 81997-76-4 In Stock
3-bromo-2-cyanobenzeneboronic acid-1,3-Propane diol Ester Fine Chemicals CS-O-56400 ---- Enquire
3-Bromobenzoic Acid Methyl Ester Fine Chemicals CS-T-07937 618-89-3 In Stock
4-(N-Methylaminomethyl)phenylboronic acid, pinacol ester Fine Chemicals CS-AC-04540 1613259-71-4 Enquire
4-Amino-benzoic acid isopropyl ester Fine Chemicals CS-M-06401 18144-43-9 In Stock
4-Phenylproline methyl ester Fine Chemicals CS-O-51819 1466813-84-2 Enquire
6-Azabicyclo[3.1.1]heptane-1-carboxylic acid, methyl ester Fine Chemicals CS-O-51689 1890153-11-3 Enquire
6-Azabicyclo[3.1.1]heptane-1-carboxylic acid, methyl ester, ... Fine Chemicals CS-O-51688 2703779-40-0 Enquire
8-Chloro-6-hydroxyoctanoic acid ethyl ester Fine Chemicals CS-ZG-85581 1070-65-1 In Stock
8-ethoxy-octanoic acid ethyl ester Fine Chemicals CS-O-54322 873976-38-6 Enquire
Arachidic Acid methyl ester Fine Chemicals CS-E-00031 1120-28-1 In Stock
Bromfenac Methyl Ester Fine Chemicals CS-O-32908 Not Available In Stock
Cyanoacetic acid t- butyl ester Fine Chemicals CS-CP-00020 1116-98-9 In Stock
D-Homophenylalanine Ethyl Ester Hydrochloride Fine Chemicals CS-DJ-00147 90940-54-8 In Stock
Docosanoic Acid Methyl Ester Fine Chemicals CS-T-21395 929-77-1 In Stock
Fumaric Acid Monomethyl Ester Fine Chemicals CS-O-30666 2756-87-8 In Stock
Hydroxypivalic Acid Methyl Ester Fine Chemicals CS-T-78789 14002-80-3 Enquire
Hypochlorous Acid tert-Butyl Ester Fine Chemicals CS-T-29011 507-40-4 Enquire
Iodosulfuron Methyl Ester Sodium Fine Chemicals CS-ED-00254 144550-36-7 Enquire
Isoleucine methyl ester Fine Chemicals CS-BL-00101 2577-46-0 Enquire
Isopropyl Ester of Diclofenac Fine Chemicals CS-CY-00072 66370-79-4 In Stock
L-Alanine Ethyl Ester Hydrochloride Fine Chemicals CS-T-01502 1115-59-9 In Stock
L-Serine Methyl Ester Hydrochloride Fine Chemicals CS-O-31485 5680-80-8 Enquire
Methanesulfnoic acid n-butyl ester Fine Chemicals CS-O-11105 1912-32-9 In Stock
N-(Diphenylmethylene)Glycine t-Butyl Ester Fine Chemicals CS-T-20938 81477-94-3 In Stock
Nα-Benzoyl-L-arginine ethyl ester hydrochloride Fine Chemicals CS-BX-00927 2645-08-1 In Stock
Phosphoric Acid Dibenzyl Ester Fine Chemicals CS-T-39839 1623-08-1 In Stock
Psilalic acid methyl ester Fine Chemicals CS-O-57811 417712-26-6 Enquire
Terephthalic acid, cyclic ethylene oxydiethylene ester Fine Chemicals CS-O-58760 29278-57-7 Enquire
Vinylboronic acid dibutyl ester Fine Chemicals CS-BX-01012 6336-45-4 In Stock
((2R,3S)-2-ethoxy-5-oxo-tetrahydro-furan-3-yl)-carbamic acid... Fine Chemicals CS-O-37464 220184-67-8 Enquire
(3-Fluoro-phenyl)-propynoic Acid Methyl Ester Fine Chemicals CS-ED-01237 221148-38-5 Enquire
(3S)-3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-5-oxo-6-(trip... Fine Chemicals CS-O-40532 Not Available Enquire
(5-Chloromethyl-[1,2,4]oxadiazol-3-yl)-acetic acid ethyl est... Fine Chemicals CS-MM-48872 1208081-49-5 Enquire
(E)-4-Chloro-3-ethoxy-2-butenoic acid ethyl ester Fine Chemicals CS-O-36915 65840-68-8 Enquire
(R)-Phenylglycine tert-butyl ester hydrochloride Fine Chemicals CS-BL-00109 256478-95-2 Enquire
[(1R)-2-(Biphenyl-4-yl)-1-formylethyl]carbamic acid tert-but... Fine Chemicals CS-O-33529 149709-58-0 Enquire
1-(Tetrahydro-pyran-2-yl)-1H-imidazole-5-boronic acid pinaco... Fine Chemicals CS-MM-45603 1029684-37-4 Enquire
11-eicosenoic acid methyl ester Fine Chemicals CS-ED-01588 69119-90-0 Enquire
1-2 Benzene di carboxylic acid di C6-C10 Alkyl Esters Fine Chemicals CS-T-93533 68515-51-5 Enquire
1H-Indole-1-propanol, 2,3-dihydro-5-(2-nitropropyl)-, benzoa... Fine Chemicals CS-O-37589 350797-54-5 Enquire
2-(2-Carboxy-phenyl)-pyrrolidine-1-carboxylic acid tert-buty... Fine Chemicals CS-O-38154 889953-35-9 Enquire
2-(Hydroxymethyl)-3-nitrobenzoic Acid Methyl Ester Fine Chemicals CS-T-78660 1628915-10-5 Enquire
2,4,5-T Isooctyl ester Fine Chemicals CS-ZH-20153 25168-15-4 Enquire
2,4-D 2 Ethyl hexyl ester Fine Chemicals CS-O-13678 1928-43-4 Enquire
2-Benzofurancarboxylic acid, 5-(1-piperazinyl)-, ethyl ester... Fine Chemicals CS-ZE-30694 1422956-31-7 Enquire
2-tert-Butoxycarbonylaminomalonicacid monoethyl ester Fine Chemicals CS-MM-00004 137401-45-7 Enquire
3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3... Fine Chemicals CS-ZH-30364 74936-76-8 Enquire
3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-5-oxo-6-(triphenyl... Fine Chemicals CS-O-40531 887703-89-1 Enquire
3-Cyano-5-methylhexanoic acid ethyl ester Fine Chemicals CS-ED-01614 181289-17-8 Enquire
4-(4-Chlorophenylamino)piperidine-4-carboxylic acid methyl e... Fine Chemicals CS-O-38480 849106-08-7 Enquire
4-butyrylamino-3-methyl-2-nitrobenzoic acid methyl ester Fine Chemicals CS-O-38255 Not Available Enquire
4-Chloro-3-nitro-benzoic acid ethyl ester Fine Chemicals CS-MM-49639 16588-16-2 Enquire
5-Butoxy-4-chloro-2-fluorophenylboronic acid, pinacol ester Fine Chemicals CS-T-69674 1256360-19-6 Enquire
5-Chlorosulfonyl-furan-3-carboxylic acid ethyl ester Fine Chemicals CS-MM-49252 256373-91-8 Enquire
Bisoprolol Phosphomonoester Fine Chemicals CS-O-38694 Not Available Enquire
Butanedioic acid, sulfo-, 1,4-dioctyl ester, sodium salt Fine Chemicals CS-ZH-14950 1639-66-3 Enquire
Caprylic acid N-succinimidyl ester Fine Chemicals CS-MM-84426 14464-30-3 Enquire
Carbonochloridic acid, octyl ester Fine Chemicals CS-ZG-93999 7452-59-7 Enquire
Chlorosulfuric acid, ethyl ester Fine Chemicals CS-ZH-16649 625-01-4 Enquire
DBE DIBASIC ESTER Fine Chemicals CS-O-34071 95481-62-2 Enquire
D-glutamic acid diethyl ester Fine Chemicals CS-O-34479 13107-55-6 Enquire
Diethyl Ester D-Glutamic Acid Hydrochloride Fine Chemicals CS-T-93905 1001-19-0 Enquire
Indocyanine Green N-succinimidyl ester Fine Chemicals CS-O-14800 Not Available Enquire
L-Glutamic Acid Dimethyl Ester Fine Chemicals CS-O-34476 6525-53-7 Enquire
Methoxyacetic acid, dodecyl ester Fine Chemicals CS-ED-02279 Not Available Enquire
Methoxyacetic acid, Pentadecyl ester Fine Chemicals CS-ED-02282 Not Available Enquire
Methoxyacetic acid, tetradecyl ester Fine Chemicals CS-ED-02281 Not Available Enquire
Methoxyacetic acid, tridecyl ester Fine Chemicals CS-ED-02280 Not Available Enquire
Monosulfuron ester Fine Chemicals CS-O-36971 175076-90-1 Enquire
N-​(tert-​butoxycarbonyl)​-​3-​(phenylmethyl)​-​L-​histidine... Fine Chemicals CS-O-36073 109013-56-1 Enquire
NH-(PEG3-t-butyl ester)2 Fine Chemicals CS-ZG-03973 1814901-03-5 Enquire
Oxalic acid ,allyl heptyl ester Fine Chemicals CS-O-32566 Not Available Enquire
Phosphonic acid, [[3,5-bis(1,1-dimethylethyl)-4-hydroxypheny... Fine Chemicals CS-O-36515 65140-91-2 Enquire
Phosphoric Acid Dioctyl Ester Fine Chemicals CS-T-60541 3115-39-7 Enquire
Phosphoric Acid Tributyl Ester Fine Chemicals CS-T-83941 126-73-8 Enquire
Propanoic acid,2-hydroxy-methyl ester Fine Chemicals CS-ED-01496 2155-30-8 Enquire
Pyruvic Acid Ethyl Ester Fine Chemicals CS-T-41271 617-35-6 Enquire
Sebacic acid mono­methyl ester chloride Fine Chemicals CS-EU-00249 14065-32-8 Enquire
sebacic acid, but-3-yn-2-yl nonyl ester Fine Chemicals CS-O-39657 Not Available Enquire
sebacic acid, nonyl 2-phenoxyethyl ester Fine Chemicals CS-O-39658 Not Available Enquire
ß-Alanine Methyl Ester Hydrochloride Fine Chemicals CS-T-01500 3196-73-4 Enquire
Succinic acid mono isopropyl ester Fine Chemicals CS-EU-00329 20279-38-3 Enquire
Tartaric Acid Methyl Ester Fine Chemicals CS-T-86742 3333-46-8 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-nitroso-Ivacaftor-3-carboxylic acid ethylester Nitrosamine CS-O-46070 ---- Enquire
1-Nitroso-L-tryptophan Methyl ester Nitrosamine CS-O-44941 ---- In Stock
2-(N-nitroso,N-methylamino)-2-phenyl-n-butanoic acid methyl ... Nitrosamine CS-O-44387 Not Available Enquire
N-Nitroso Aceclofenac Benzyl Ester(Mixture of isomers) Nitrosamine CS-O-48694 Not Available In Stock
N-Nitroso Aceclofenac ethyl ester Nitrosamine CS-O-48692 Not Available Enquire
N-Nitroso Aceclofenac methyl ester Nitrosamine CS-O-48691 Not Available In Stock
N-Nitroso Amlodipine Methyl Ester Analogue Nitrosamine CS-O-51268 Not Available Enquire
N-Nitroso Apixaban Amino Acid ethyl ester Impurity Nitrosamine CS-O-54413 ---- Enquire
N-Nitroso Azilsartan Imidazole Carbonyl Dioxolene Ester Nitrosamine CS-EO-02760 Not Available Enquire
N-Nitroso Azilsartan Methyl Ester Nitrosamine CS-EO-02759 Not Available Enquire
N-Nitroso brivaracetam methyl ester impurity Nitrosamine CS-O-55094 ---- Enquire
N-Nitroso Dabigatran Ethyl Ester Impurity Nitrosamine CS-O-40250 ---- Enquire
N-Nitroso Deacetamidine Cyano Dabigatran Ethyl Ester Nitrosamine CS-O-40248 ---- Enquire
N-Nitroso Desmethyl Moxifloxacin methyl ester Nitrosamine CS-O-45886 Not Available Enquire
N-Nitroso Diclofenac ethyl Ester Nitrosamine CS-O-48690 Not Available Enquire
N-Nitroso Diclofenac Methyl Ester Nitrosamine CS-O-48689 Not Available Enquire
N-Nitroso diethyl ester Methotrexate EP Impurity-L Nitrosamine CS-O-45484 Not Available Enquire
N-Nitroso Edobaxan ethyl ester Nitrosamine CS-O-52730 ---- Enquire
N-Nitroso Elagolix Ethyl ester impurity Nitrosamine CS-O-44967 Not Available Enquire
N-Nitroso Eltrombopag Methyl Ester Nitrosamine CS-O-51777 Not Available Enquire
N-Nitroso Etodolac methylester Nitrosamine CS-O-45942 Not Available Enquire
N-Nitroso Iptacopan Methyl Ester Impurtiy Nitrosamine CS-O-58256 ---- Enquire
N-Nitroso Ketorolac Triethylester Intermediate Nitrosamine CS-O-46376 ---- Enquire
N-nitroso Methotrexate Ethylester impurity Nitrosamine CS-O-46627 Not Available Enquire
N-Nitroso Moxifloxacin methyl ester Nitrosamine CS-O-45885 Not Available In Stock
N-Nitroso N-Devaleryl Valsartan methyl ester Impurity (mixtu... Nitrosamine CS-O-35829 Not Available In Stock
N-Nitroso Nilotinib EP Impurity D ethyl ester Nitrosamine CS-O-49138 Not Available Discontinued
N-Nitroso N-Methoxycarbonyl Dabigatran Ethyl Ester Nitrosamine CS-O-51185 Not Available In Stock
N-Nitroso Quinapril Ethyl ester Nitrosamine CS-O-48613 Not Available In Stock
N-Nitroso TrtylValsartan Desvaleryl Methyl Ester (Mixture of... Nitrosamine CS-O-52963 Not Available In Stock
N-Nitroso Valsartan Benzyl ester Nitrosamine CS-O-53225 ---- Enquire
N-Nitroso Valsartan Cyano Desvaleryl Methyl Ester (Mixture o... Nitrosamine CS-O-55982 ---- In Stock
N-Nitroso Vilazodone Ethyl Ester Impurity Nitrosamine CS-EO-03004 Not Available Enquire
N-Nitroso Vildagliptin methyl ester Nitrosamine CS-O-46232 Not Available In Stock
Vildagliptin N-Nitroso-L-Proline Methyl Ester Nitrosamine CS-EO-01927 35909-01-4 In Stock


Natural Products

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Shanziside methyl ester Natural Products CS-O-53882 64421-28-9 In Stock


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,3S)-N-Benzoyl-3-phenyl Isoserine Ethyl Ester Therapeutic CS-T-48736 153433-80-8 In Stock
(3R)-4-Cyano-3-hydroxybutyric Acid Ethyl Ester Therapeutic CS-O-31954 141942-85-0 In Stock
2-Bromomethyl-3-nitro-benzoic acid methyl ester Therapeutic CS-O-31777 98475-07-1 In Stock
Apixaban Ester Impurity Therapeutic CS-O-15287 503614-91-3 In Stock
Mycophenolic Acid Sorbitol Ester Therapeutic CS-O-32765 ---- In Stock


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2S,3S)-2,3-Dihydroxy-3-methyl-4-(phenylmethoxy)butanoic-d3 ... Stable Isotope Reagent CS-T-97585 2165430-91-9 (Unlabelled) Enquire
2,4-D Methyl Ester-d3 Stable Isotope Reagent CS-T-103919 1928-38-7(unlabelled) Enquire
2-Amino-α-(methoxyimino)-4-thiazoleacetic Acid-d3 Methyl Est... Stable Isotope Reagent CS-T-94559 1331670-10-0 Enquire
3-Bromobenzoic Acid Methyl Ester-d4 Stable Isotope Reagent CS-O-50186 1643575-37-4 Enquire
Anthranilic Methyl Ester-d4 Stable Isotope Reagent CS-O-48835 Not Available In Stock
Cholesterol-3-18O Stable Isotope Reagent CS-T-72874 59613-51-3 Enquire
Cyclopentane-carboxylic acid methyl ester D8 Stable Isotope Reagent CS-O-52792 2469103-32-8 Enquire
Cysteine methyl ester-13C3 15N Stable Isotope Reagent CS-O-45531 2485-62-3 (Unlabelled) Enquire
Epicholesterol-2,2,3,4,4,6-d6 Stable Isotope Reagent CS-C-00680 92543-07-2 Enquire
Glycine-2,2-d2, ND2 Methyl Ester DCl Stable Isotope Reagent CS-C-01640 Not Available Enquire
MCPA Ethyl Ester-D3 Stable Isotope Reagent CS-T-103725 2698-38-6(unlabelled) Enquire
Methyl Diethyldithiocarbamate-d3 Stable Isotope Reagent CS-TB-92777 1246816-30-7 In Stock
Methyl-D3-boronic acid pinacol ester Stable Isotope Reagent CS-O-45701 2413695-26-6 Enquire
N-[(Phenylmethoxy)carbonyl]-beta-alanine methyl ester-13C3 1... Stable Isotope Reagent CS-O-47873 54755-77-0 (Unlabelled) Enquire
N-[4-[(Trifluoroacetyl)amino]benzoyl]-L-glutamic Acid Dimeth... Stable Isotope Reagent CS-T-102873 233600-78-7(Unlabelled) Enquire
p-Hydroxyphenylglycine methyl ester-D4 Stable Isotope Reagent CS-O-46499 43189-12-4 (Unlabelled) Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1S,3R,4S)-4-Amino-3-(Boc-amino)-cyclohexane-carboxylic acid... Building Blocks CS-O-47085 480449-84-1 Enquire
(3,5-Bis-trifluoromethylphenyl)carbamic acid phenyl ester Building Blocks CS-O-47943 65141-19-7 Enquire
(aS)-a-[[(1,1-Dimethylethoxy)carbonyl]amino]benzenebutanoyl-... Building Blocks CS-T-102284 868540-15-2 Enquire
(E)-5-​Methyl-​2-​hex-​2-​enoic Acid Ethyl Ester Building Blocks CS-T-95849 34993-63-0 Enquire
(R)-(−)-2-Phenylglycine methyl ester hydrochloride Building Blocks CS-BX-01039 19883-41-1 Enquire
(R)-3-Cyano-5-methyl hexanoic acid ethyl ester Building Blocks CS-O-44859 181289-38-3 Enquire
1,3-Dioxolane-4-methanol, 2-(2,4-dichlorophenyl)-2-(1H-1,2,4... Building Blocks CS-O-46513 113770-65-3 Enquire
2-(S)-Bromo-3-tert-butoxypropionic acid methyl ester Building Blocks CS-O-47164 581064-18-8 Enquire
2,2-Dimethylpropanethioic acid s-(2-hydroxyethyl)ester Building Blocks CS-O-48642 153121-88-1 Enquire
2-Diazo-3-oxo-pentanedioic acid diethyl ester Building Blocks CS-O-55536 649729-45-3 Enquire
4-Aminopyridine-2-boronic acid pinacol ester Building Blocks CS-O-46901 1061750-57-9 Enquire
4-Nitro-L-Phenylalanine Methyl Ester Hydrochloride Building Blocks CS-O-20029 17193-40-7 In Stock
6-(Di-Boc-Amino)pyridine-2-boronic Acid Pinacol Ester Building Blocks CS-T-95869 1310384-87-2 Enquire
Benzoic Acid, 4-(trans-4-pentylcyclohexyl)-, (1s)-1-phenyl-1... Building Blocks CS-O-48716 165660-09-3 Enquire
Boc-3-Aminopyridine-2-boronic acid pinacol ester Building Blocks CS-O-44162 1310405-05-0 Enquire
Boc-L-glutamic acid 5-benzyl ester Building Blocks CS-O-11066 13574-13-5 In Stock
D-Cysteine Methyl Ester Building Blocks CS-O-44510 88806-98-8 Enquire
D-Glucopyranuronic acid,1-bromo-1-deoxy-,methyl ester,triace... Building Blocks CS-O-59509 57820-69-6 Enquire
D-Isoleucine benzyl ester 4-toluenesulfonate salt Building Blocks CS-O-58227 80174-45-4 Enquire
Fmoc-L-Ala-ethyl ester Building Blocks CS-O-43146 117402-82-1 Enquire
Fmoc-L-Alanine Isopropyl ester Building Blocks CS-O-43148 1185984-34-2 Enquire
Fmoc-L-Ala-tert-butyl ester Building Blocks CS-O-43147 71953-00-9 Enquire
Imidazole-1- acetic acid-t-butyl ester Building Blocks CS-O-46353 83468-75-1 Enquire
L-Cystine Dimethyl Ester Building Blocks CS-EO-03287 1069-29-0 Enquire
L-Proline, methyl ester Building Blocks CS-O-47363 2577-48-2 Enquire
N-(1-Oxohexadecyl)-L-glutamic Acid tert-Butyl Ester Building Blocks CS-T-38455 536721-25-2 Enquire
N,N-Diethylglycine Methyl Ester Building Blocks CS-DE-01643 30280-35-4 Enquire
N-Acetyl- L -tyrosine ethyl ester Building Blocks CS-O-01975 840-97-1 In Stock
phenylglycine methyl ester Building Blocks CS-T-96064 23284-84-6 Enquire
TCO-NHS ester Building Blocks CS-O-48529 1191901-33-3 Enquire
Trifluoro methane sulfonic acid tert amyl ester Building Blocks CS-O-46745 Not Available Enquire
(R) N(2,6-Dimethylphenyl)alanine methyl ester Building Blocks CS-O-40544 57646-33-0 Enquire
(R)-(-)-2-Chlorophenylglycine methyl ester Building Blocks CS-ZG-99389 141109-16-2 Enquire
3-Chloro-N-[(tert-butyloxy)carbonyl]-L-alanine Methyl Ester Building Blocks CS-T-73051 651035-84-6 Enquire
3-Oxo-propionic acid ethyl ester Building Blocks CS-ZH-15174 34780-29-5 Enquire
4-Pyrazoleboronic Acid Pinacol Ester Building Blocks CS-T-40988 269410-08-4 Enquire
5-(1-Piperazinyl)-2-benzofurancarboxylic Acid Methyl Ester Building Blocks CS-TA-36290 1186225-86-4 Enquire
Aztreonam T-Butyl Ester Building Blocks CS-RS-00080 330944-50-8 Enquire
D-Isoleucine Methyl Ester Hydrochloride Building Blocks CS-TB-75569 167223-42-9 Enquire
L-Glutamic acid dimethyl ester hydrochloride Building Blocks CS-DA-00376 23150-65-4 Enquire
N-Benzyloxycarbonyl-O-mesyl-L-serine methyl ester Building Blocks CS-O-33392 132249-34-4 Enquire
N-Boc-1,2,5,6-tetrahydropyridine-4-boronic acid pinacol este... Building Blocks CS-DV-03644 286961-14-6 Enquire
N-t-Boc-L-serine Allyl Ester Building Blocks CS-T-07705 143966-57-8 Enquire


EP Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Methotrexate System Suitability Mixture (Mixture of Methotre... EP Standards CS-EG-03319 Not Available Enquire


Enzymes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Cholesterol Esterase Enzymes CS-O-54271 9026-00-0 Enquire
Cholesterol Esterase (CE) ex. Porcine Pancreas, Enzymes CS-EP-00147 9026-00-0 Enquire


Pesticide Standards

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
4-Aminobenzoic Acid Methyl Ester Pesticide Standards CS-T-01925 619-45-4 In Stock
MCPA-Butoxyethyl Ester Pesticide Standards CS-O-55010 19480-43-4 Enquire


Carbohydrates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-bromo-1-deoxy-2-O-(2,3,4-tri-O-acetyl-6-methyl-beta-D-gluc... Carbohydrates CS-O-58548 148144-30-3 Enquire
2,3,4-Tri-O-benzyl-a-D-glucuronic acid benzyl ester trichlor... Carbohydrates CS-O-47313 184698-69-9 Enquire
2,3,4-Tri-O-Pivaloyl-D-glucopyranuronic acid methyl ester tr... Carbohydrates CS-O-47356 Not Available Enquire
Carbamic acid, N-[5-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-d... Carbohydrates CS-O-55581 905440-42-8 Enquire
carbamic acid, N-[5-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-d... Carbohydrates CS-O-55657 211688-85-6 Enquire
D-erythro-α-L-manno-2-Nonulopyranosonic acid, 5-(acetylamino... Carbohydrates CS-O-55523 197720-48-2 Enquire
Ethylenediaminetetraacetic acid triethyl ester Carbohydrates CS-O-60630 90359-20-9 Enquire
Hexanoic acid, 6-[(2,3,4,6-tetra-O-acetyl-β-D-galactopyranos... Carbohydrates CS-O-55525 "273383-40-7 Enquire
Hexanoic acid, 6-[[2-(acetylamino)-2-deoxy-4,6-O-(phenylmeth... Carbohydrates CS-O-55633 178454-70-1 Enquire
Hexanoic acid, 6-[[2-(acetylamino)-2-deoxy-β-D-glucopyranosy... Carbohydrates CS-O-55631 65567-19-3 Enquire
Hexanoic acid, 6-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deox... Carbohydrates CS-O-55630 431079-76-4 Enquire
N-Acetylneuraminic Acid Methyl Ester Carbohydrates CS-T-47338 22900-11-4 Enquire
Neuraminic acid, N-acetyl-9-azido-9-deoxy-, methyl ester Carbohydrates CS-O-55603 1798817-00-1 Enquire
Neuraminic acid, N-acetyl-9-azido-9-deoxy-, methyl ester, 2,... Carbohydrates CS-O-55604 219814-64-9 Enquire
ß-Neuraminic acid, N-acetyl-9-azido-9-deoxy-2-S-4-Methylphen... Carbohydrates CS-O-55606 ---- Enquire
α-D-Galactopyranosiduronic acid, methyl, methyl ester Carbohydrates CS-O-55593 5155-54-4 Enquire
α-D-Glucopyranosiduronic acid, methyl, methyl ester Carbohydrates CS-O-55594 18486-51-6 Enquire
α-Neuraminic acid, N-acetyl-2-O-(3-azidopropyl)-, methyl est... Carbohydrates CS-O-55601 1669415-31-9 Enquire
α-Neuraminic acid, N-acetyl-2-O-(3-chloropropyl)-, methyl es... Carbohydrates CS-O-55600 1800380-58-8 Enquire
α-Neuraminic acid, N-acetyl-2-O-[2-[2-(2-azidoethoxy)ethoxy]... Carbohydrates CS-O-55602 1021945-43-6 Enquire
α-Neuraminic acid, N-acetyl-2-O-2-propyn-1-yl-, methyl ester Carbohydrates CS-O-55599 950669-95-1 Enquire
β-Neuraminic acid, N-acetyl-2-S-(4-methylphenyl)-2-thio-, me... Carbohydrates CS-O-55598 358681-51-3 Enquire
β-Neuraminic acid, N-acetyl-9-azido-9-deoxy-2-S-phenyl-2-thi... Carbohydrates CS-O-55605 219814-65-0 Enquire
2,3,4-Tri-O-benzyl-D-glucopyranosiduronic Acid Benzyl Ester,... Carbohydrates CS-T-87337 159420-94-7 Enquire


Peptide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
[12-Glycine]Terlipressin Ethyl Ester Peptide CS-P-06504 Not Available In Stock
Fmoc-D-Serine methyl ester Peptide CS-O-46175 874817-14-8 Enquire


Chiral

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester Chiral CS-O-10935 125988-01-4 In Stock
Levofloxacin Ethyl Ester Chiral CS-T-57224 177472-30-9 In Stock
(+)-Cloprostenol Isopropyl Ester Chiral CS-P-07445 157283-66-4 Enquire