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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Carboxylic Acid, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Carboxylic Acid 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 Carboxylic Acid-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.

Carboxylic Acid Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2R,4S)-2-((R)-2-(Benzyl(2-(benzylamino)ethyl)amino)-2-oxo-1... Stable Isotopes CS-T-96330 Not Available Enquire
(2S)-1-(Benzyloxycarbonyl)azetidine-2-carboxylic acid-d5 Stable Isotopes CS-T-102728 Not Available Enquire
(2S,3S)-3-[[[(1S)-1-[[(4-Azidobutyl)amino]carbonyl]-3-methyl... Stable Isotopes CS-T-100979 Not Available Enquire
(2S,3S,4S,5R,6S)-3,4,5-Triacetoxy-6-((5-(2,5-dimethylphenoxy... Stable Isotopes CS-T-102351 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,5R)-3,3-Dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane... Stable Isotopes CS-T-97570 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
(3S)-10-(4-Ethyl-1-piperazinyl)-9-fluoro-2,3-dihydro-3-methy... Stable Isotopes CS-T-97514 Not Available Enquire
(3S,5S)-1-Boc-5-(methoxymethyl)pyrrolidine-3-carboxylic Acid... Stable Isotopes CS-T-97745 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
(3S,7aR)-2,3,7,7a-Tetrahydro-2,2-dimethyl-5-(phenylmethyl)-i... Stable Isotopes CS-T-99803 Not Available Enquire
(3Z)-2,3-Dihydro-3-[[[4-[methyl[2-(4-methyl-1-piperazinyl)ac... Stable Isotopes CS-T-100438 Not Available Enquire
(4R)-4-[(R)-Hydroxyphenylmethyl]-2,2-dimethyl-3-oxazolidinec... Stable Isotopes CS-T-97423 502483-52-5 Enquire
(4R)-Tetrahydro-2H-1,3-thiazine-d4-2,4-dicarboxylic Acid Hyd... Stable Isotopes CS-T-97142 Not Available Enquire
(4R,5S)-4-(2-Hydroxypropan-2-yl)-2,2,5-trimethyl-1,3-dioxola... Stable Isotopes CS-T-102797 Not Available Enquire
(4S)-4,5-Dihydro-2-(6-hydroxy-2-benzothiazolyl)-4-thiazoleca... Stable Isotopes CS-T-96853 2591-17-5(Unlabelled) Enquire
(4S)-4,5-Dihydro-2-(6-hydroxy-2-benzothiazolyl)-4-thiazoleca... Stable Isotopes CS-T-96854 2591-17-5(Unlabelled) Enquire
(R)-2-Thioxothiazolidine-4-carboxylic Acid-13C3 Stable Isotopes CS-T-99075 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
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-(1,1-Dimethylethyl)-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-qu... Stable Isotopes CS-T-100401 Not Available Enquire
1-(2,2-Difluoro-1,3-benzodioxol-5-yl)cyclopropane-2,2,3,3-d4... Stable Isotopes CS-T-102386 1961281-89-9 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-(3-Pyridyl)-1-butanol-4-carboxylic Acid-13C6 Ammonium Salt Stable Isotopes CS-T-98757 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
1,2,4-Benzenetricarboxylic Acid 2-(2-Ethylhexyl) Ester-d17 Stable Isotopes CS-T-98269 Not Available Enquire
1,2,4-Benzenetricarboxylic Acid 2,4-Bis(2-ethylhexyl) Ester-... Stable Isotopes CS-T-98266 Not Available Enquire
1,2,4-Trioctyl Ester 1,2,4-Benzenetricarboxylic Acid-d51 Stable Isotopes CS-T-102619 89-04-3(Unlabelled) Enquire
1,2-Benzenedicarboxylic Acid 1-(5-Carboxy-2-ethyl-4-hydroxyp... Stable Isotopes CS-T-98275 Not Available Enquire
1,2-Benzenedicarboxylic Acid 1-(5-Methylhexyl) Ester-d4 Stable Isotopes CS-T-98273 Not Available Enquire
1,2-Benzenedicarboxylic Acid 1-(5-Methylhexyl) Undecyl Ester... Stable Isotopes CS-T-98272 Not Available Enquire
1,2-Benzenedicarboxylic Acid 1-(7-Hydroxy-4-methyloctyl) Est... Stable Isotopes CS-T-98270 1332965-98-6 Enquire
1,2-Benzenedicarboxylic Acid Hexyl Octyl Ester-d4 Stable Isotopes CS-T-98277 Not Available Enquire
1,2-Benzenedicarboxylic Acid Mono(5-carboxy-2-ethyl-4-oxopen... Stable Isotopes CS-T-98276 Not Available Enquire
1,2-Benzenedicarboxylic Acid Nonyl Undecyl Ester-d4 Stable Isotopes CS-T-98271 Not Available Enquire
1,2-Benzenedicarboxylic Acid-d4 1-(4-Hydroxybutyl) Ester Stable Isotopes CS-T-98274 1346600-32-5 Enquire
1,2-Cyclohexanedicarboxylic Acid Mono 4-Methyl-7-carboxy-hep... Stable Isotopes CS-T-102685 1637562-51-6(Unlabelled) Enquire
1,6-Dihydro-5-hydroxy-1-methyl-2-[1-methyl-1-[[benzylcarbamo... Stable Isotopes CS-T-101519 1189485-35-5 Enquire
1-[(4-Chlorophenyl)methyl]-3,3-dimethyl-2-oxocyclopentanecar... Stable Isotopes CS-T-102846 115851-50-8(Unlabelled) Enquire
1-[(4-Chlorophenyl)methyl]-3-methyl-2-oxocyclopentanecarboxy... Stable Isotopes CS-T-102848 Not Available Enquire
1-[[2'-(Aminoiminomethyl)[1,1'-biphenyl]-4-yl]methyl]-2-etho... Stable Isotopes CS-T-101909 Not Available Enquire
17α-Des-(2-hydroxyacetyl)budesonide 17α-Carboxylic Acid-d8 Stable Isotopes CS-T-99630 Not Available Enquire
1-Benzyloxycarbonylazetidine-2-carboxylic acid-d5 Stable Isotopes CS-T-102727 174740-81-9(Unlabelled) Enquire
1-Cyano-2,3-dihydro-1H-indene-1-carboxylic Acid-d4 Stable Isotopes CS-T-100650 Not Available Enquire
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-5-methyl-4-oxo-3-quin... Stable Isotopes CS-T-100587 Not Available Enquire
1-Cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydroquinol... Stable Isotopes CS-T-100588 Not Available Enquire
1-Cyclopropyl-6-fluoro-1,4-dihydro-7-ethoxy-8-methoxy-4-oxo-... Stable Isotopes CS-T-101639 Not Available Enquire
1-Cyclopropyl-7-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxyl... Stable Isotopes CS-T-100585 Not Available Enquire
1-Cyclopropyl-7-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoli... Stable Isotopes CS-T-100584 Not Available Enquire
1-Cyclopropyl-8-(difluoromethoxy)-6,7-difluoro-1,4-dihydro-4... Stable Isotopes CS-T-100586 Not Available Enquire
1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quin... Stable Isotopes CS-T-97674 Not Available Enquire
1-Cyclopropyl-8-ethoxy-6,7-difluoro-1,4-dihydro-4-oxo-3-quin... Stable Isotopes CS-T-97673 Not Available Enquire
1-Desmethyl-2-desethylcarboxylic Acid 1-Methyl-2-ethylcarbox... Stable Isotopes CS-T-100497 Not Available Enquire
1H-Benzotriazole-1-carboxylic Acid Methyl Ester-d3 Stable Isotopes CS-T-99365 Not Available Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester-... Stable Isotopes CS-T-102828 133261-07-1(Unlabelled) Enquire
1-Methyl-3-propyl-1H-pyrazole-5-carboxylic Acid-d3 Stable Isotopes CS-T-102829 1046784-60-4 Enquire
1-Methylcyclohexanecarboxylic Acid-d10 Methyl Ester Stable Isotopes CS-T-102863 825-04-7(Unlabelled) Enquire
1-Methylcyclohexanecarboxylic Acid-d10 Stable Isotopes CS-T-102864 1123-25-7(Unlabelled) Enquire
1-Pentyl-1H-Indole-3-carboxylic Acid 8-Quinolinyl Ester-d11 Stable Isotopes CS-T-98632 1400742-17-7(Unlabelled) Enquire
1-Triphenylmethylimidazole-4-carboxylic Acid-d2 Stable Isotopes CS-T-97121 Not Available Enquire
2-(((4-Methyl-7-oxyooctyl)oxy)carbonyl)(cyclohexane-d8)carbo... Stable Isotopes CS-T-102222 Not Available Enquire
2-((1r,4r)-4-(4-Chlorophenyl)cyclohexyl-d5)-1-oxo-1H-indene-... Stable Isotopes CS-T-97694 Not Available Enquire
2'-(2H-Tetrazol-5-yl)-[1,1'-biphenyl]-4-carboxylic Acid-d4 Stable Isotopes CS-T-99795 Not Available Enquire
2-(Cyanomethyl)-1H-indole-1-carboxylic Acid tert-Butyl Ester... Stable Isotopes CS-T-98664 Not Available Enquire
2,2-Dimethyl-(1,3) dioxolane-4-carboxylic Acid Methyl Ester-... Stable Isotopes CS-T-102472 108865-84-5(Unlabelled) Enquire
2,3,5,7,8-pentadeuterioquinoxaline-6-carboxylic acid Stable Isotopes CS-O-46199 2306273-09-4 Enquire
2,3-Dihydroxy-6-methyl-7-(phenylmethyl)-4-propyl-1-naphthale... Stable Isotopes CS-T-101502 Not Available Enquire
2,4-Bis(2-ethylhexyl) Benzene-1,2,4-tricarboxylic Acid 1-Ben... Stable Isotopes CS-T-98874 Not Available Enquire
2,5-Furandicarboxylic Acid-13C6 Stable Isotopes CS-T-102757 2816171-80-7 Enquire
2,6-Napthanedicarboxylic acid-d6 Stable Isotopes CS-O-40655 682321-46-6 Enquire
2-[3-Carboxy-4-(2-methylpropoxy)phenyl]-4-methyl-5-thiazolec... Stable Isotopes CS-T-101724 Not Available Enquire
2-Amino-5-thiazolecarboxylic Acid Ethyl Ester-13C3,15N2 Stable Isotopes CS-T-100844 Not Available Enquire
2-Chloro-5-thiazolecarboxylic Acid-13C3,15N Stable Isotopes CS-T-103111 101012-12-8(Unlabelled) Enquire
2-Ethoxy-d5-1-[[2'-[(hydroxyamino)iminomethyl][1,1'-biphenyl... Stable Isotopes CS-T-101415 1795133-18-4 Enquire
2-Ethoxynaphthalene-1-carboxylic Acid-d5 Stable Isotopes CS-T-101425 Not Available Enquire
3-(2-Chlorophenyl)-5-methyl-2,3-dihydroisoxazole-4-carboxyli... Stable Isotopes CS-T-97689 Not Available Enquire
3-(Piperazin-1-yl)pyrrolidine-1-carboxylic Acid tert-Butyl E... Stable Isotopes CS-T-102121 Not Available Enquire
3-Azido-3-methyl-8-oxo-5,5-dioxide-5-thia-1-azabicyclo[4.2.0... Stable Isotopes CS-T-101881 Not Available Enquire
3-Benzyloxy Carvedilol-d5 N-Carboxylic Acid tert-Butyl Ester Stable Isotopes CS-T-100784 Not Available Enquire
3-Benzyloxy-4-oxiranylmethyl-d5-9H-carbazole N-Carboxylic Ac... Stable Isotopes CS-T-100782 Not Available Enquire
3-Methylquinoxaline-2-carboxylic acid-d4 Stable Isotopes CS-O-40074 74003-63-7 (Unlabeled) Enquire
4-​(6-​Methoxy-​3-​pyridinyl)​-​1-​piperazinecarboxylic Acid... Stable Isotopes CS-T-100058 Not Available Enquire
4-​(6-​Nitro-​3-​pyridinyl)​-1-​piperazine-​2,​2,​6,​6-​d4-​... Stable Isotopes CS-T-102709 2089333-15-1 Enquire
4-​Piperidine-​d9-​carboxylic Acid Stable Isotopes CS-O-44198 1219798-43-2 Enquire
4-(2,3-Dichlorophenyl)-1-piperazinecarboxylic Acid 1,1-Dimet... Stable Isotopes CS-T-102712 503315-03-5(Unlabelled) Enquire
4-(2-Bromophenyl)-2,6-dimethyl-3,5-pyridinedicarboxylic Acid... Stable Isotopes CS-T-101782 1329793-25-0 Enquire
4-(4-Chlorophenyl)-3-cyclohexene-1-carboxylic Acid-d4 Stable Isotopes CS-T-101703 Not Available Enquire
4-(8-Chloro-5H-dibenzo[b,e][1,4]diazepin-11-yl)-1-piperazine... Stable Isotopes CS-T-102851 936094-44-9(Unlabelled) Enquire
4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid Methyl ... Stable Isotopes CS-T-98361 Not Available Enquire
4-(Phenylamino]-1-benzyl-4-piperidinecarboxylic Acid-d4 Stable Isotopes CS-T-98362 Not Available Enquire
4'-[(1,7'-Dimethyl-2'-propyl[2,5'-bi-1H-benzimidazol]-1'-yl)... Stable Isotopes CS-T-100506 Not Available Enquire


Metabolite

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,1-Cyclobutanedicarboxylic Acid Metabolite CS-M-01237 5445-51-2 In Stock
1-hydroxy Dihydro Finasteride carboxylic acid Metabolite CS-O-44051 Not Available Enquire
2-[4-[2-(4-Chlorophenyl)-5-(2-oxopyrrolidin-1-yl)benzyloxy]-... Metabolite CS-O-43505 480462-62-2 Enquire
Celecoxib carboxylic acid Metabolite CS-O-05983 170571-01-4 In Stock
Clopidogrel Carboxylic Acid Metabolite CS-O-06012 144457-28-3 In Stock
Clopidogrel Carboxylic Acid N-Oxide Metabolite CS-O-45946 Not Available Enquire
Dasatinib Carboxylic Acid Metabolite CS-T-14435 910297-53-9 In Stock
Dehydro Silodosin Carboxylic Acid Impurity Metabolite CS-P-09083 1384966-05-5 Enquire
Enzalutamide Carboxylic Acid Metabolite CS-O-11999 1242137-15-0 In Stock
Iloperidone Carboxylic Acid Metabolite CS-O-07861 475110-48-6 In Stock
Mesalamine Dicarboxylic Acid Analog Metabolite CS-O-12023 859964-08-2 In Stock
Oseltamivir Carboxylic Acid Metabolite CS-O-07980 187227-45-8 In Stock
Silodosin carboxylic acid impurity Metabolite CS-ZG-80143 1357252-79-9 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(-)-11-Nor-Δ9-Tetrahydro Cannabinol-9-carboxylic Acid Impurity CS-T-30710 56354-06-4 Enquire
(1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)... Impurity CS-O-39331 Not Available Enquire
(1R,2R)-2-Fluorocyclopropanecarboxylic acid Impurity CS-DV-00044 127199-13-7 Enquire
(1R,2R)-Cyclohexane-1,2-dicarboxylic acid Impurity CS-O-31312 46022-05-3 In Stock
(1R,2S)-2-(3,4-difluorophenyl)cyclopropanecarboxylic acid Impurity CS-O-49111 1414348-38-1 Enquire
(1R,2S)-2-(hydroxymethyl)-1-phenylcyclopropanecarboxylic aci... Impurity CS-O-52676 66823-04-9 Enquire
(1R,2S,5R)-2-Isopropyl-5-methylcyclohexanecarboxylic acid Impurity CS-DV-00049 16052-40-7 Enquire
(1R,3S)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropanecarboxy... Impurity CS-O-16342 61914-48-5 Enquire
(1R,5R,6R)-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-... Impurity CS-T-54574 1266663-89-1 Enquire
(1R,5S,6R)-rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-... Impurity CS-T-54573 347378-74-9 Enquire
(1R,6R)-rel-6-(2,3-Dichlorophenyl)-2-methyl-4-oxo-2-cyclohex... Impurity CS-T-90627 1207068-16-3 Enquire
(1S,2R)-2-(3,4-difluorophenyl)cyclopropanecarboxylic acid Impurity CS-O-49107 2051515-36-5 Enquire
(1S,2S)-2-(3,4-difluorophenyl)cyclopropanecarboxylic acid Impurity CS-O-49102 1459720-31-0 Enquire
(1S,3S)-1-(1,3-Benzodioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrid... Impurity CS-T-48663 171596-43-3 Enquire
(1S,3S)-3-((tert-Butoxycarbonyl)amino)cyclopentanecarboxylic... Impurity CS-DV-00066 161601-29-2 Enquire
(1S,3S)-3-(4-chlorophenyl)cyclohexane-1-carboxylic acid Impurity CS-O-60434 ---- Enquire
(1S,3S,4S)-2-(tert-butoxycarbonyl)-5,5-difluoro-2-azabicyclo... Impurity CS-O-41175 1290626-50-4 Enquire
(1S,3S,5S)-3-(Aminocarbonyl)-2-azabicyclo[3.1.0]hexane-2-car... Impurity CS-CO-00016 361440-67-7 In Stock
(1S,5R,6R)-5-Hydroxy-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxy... Impurity CS-T-79627 876014-27-6 Enquire
(1S,5S,6S)-5-(1-Ethyl-propoxy)-7-oxa-bicyclo[4.1.0]hept-3-en... Impurity CS-O-35866 2413185-88-1 Enquire
(2R,​3R,​6S)​-6-​(4-​Fluorophenyl)​tetrahydro-​2-​(4-​hydrox... Impurity CS-T-77443 1618657-31-0 Enquire
(2R,3aR,7aR)-rel-OctahydroIndole-2-carboxylic Acid Impurity CS-T-83495 80828-13-3 Enquire
(2R,3aR,7aS)-Octahydro-1H-indole-2-carboxylic Acid Impurity CS-O-39430 145438-95-5 Enquire
(2R,3S)-2-(4-(cyclopentylamino)phenyl)-1-(2-fluoro-6-methylb... Impurity CS-O-54508 1346623-11-7 Enquire
(2R,4S)-4-(2-(tert-butoxy)-2-oxoethoxy)pyrrolidine-2-carboxy... Impurity CS-O-58111 3053450-93-1 Enquire
(2R,6R)-1-(tert-butoxycarbonyl)-6-methylpiperidine-2-carboxy... Impurity CS-O-42802 2166006-41-1 Enquire
(2s,3as,7as)-octahydro-1h-indole-2-carboxylic acid Hydrochlo... Impurity CS-O-31671 144540-75-0 Enquire
(2S,3S)-3-hydroxypyrrolidine-2-carboxylic acid compound with... Impurity CS-O-44171 1844898-10-7 Enquire
(2S,3S,4R,5S)-3,4,5-Trihydroxy-2-piperidinecarboxylic acid Impurity CS-O-45554 129797-28-0 Enquire
(2S,3S,4R,5S)-3,4,5-Trihydroxypiperidine-2-carboxylic acid h... Impurity CS-O-47165 1018064-80-6 Enquire
(2S,4R)-1-(Diisopropoxyphosphoryl)-4-hydroxypyrrolidine-2-ca... Impurity CS-O-54907 117286-92-7 Enquire
(2S,4S)-1-(tert-Butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-p... Impurity CS-O-38701 1821705-03-6 Enquire
(2S,5R)-6-(benzyloxy)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-... Impurity CS-EM-02758 1174020-25-7 Enquire
(2S,5R)-Emtricitabine Carboxylic Acid Impurity CS-O-59279 ---- Enquire
(2S,5S)-Emtricitabine Carboxylic Acid Impurity CS-O-59276 ---- Enquire
(2S,5S)-Fmoc-5-amino-1,2,4,5,6,7-hexahydro-azepino [3,2,1-hi... Impurity CS-AC-03965 204326-24-9 Enquire
(3E)-1-Acetyl-3-(ethoxyphenylmethylene)-2,3-dihydro-2-oxo-1H... Impurity CS-T-64313 1168152-06-4 Enquire
(3R,4R,5R)-3,4-Dihydroxy-5-[(methylsulfonyl)oxy]-1-cyclohexe... Impurity CS-T-53254 220626-12-0 Enquire
(3R,4R,5R)-4-Acetylamino-5-amino-3-(1-ethyl-propoxy)-cyclohe... Impurity CS-O-35872 Not Available Enquire
(3R,4R,5S)-4-(Acetylamino)-5-amino-3-(1-methylethoxy)-1-Cycl... Impurity CS-T-93560 1052063-36-1 Enquire
(3R,4S)-4-Ethyl-3-pyrrolidinecarboxylic acid Impurity CS-O-54951 1821826-28-1 Enquire
(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de... Impurity CS-T-54826 117620-84-5 Enquire
(3S,4R,5S)-4-Acetylamino-5-amino-3-(1-ethyl-propoxy)-cyclohe... Impurity CS-O-35870 Not Available Enquire
(4R)-2-oxo-4-propyltetrahydrofuran-3-carboxylic acid Impurity CS-O-44267 2052297-76-2 Enquire
(4R,5S,6S)-3-(((3S,5S)-5-(Aminomethyl)pyrrolidin-3-yl)thio)-... Impurity CS-O-60753 175845-95-1 Enquire
(4S)-1-(tert-butoxycarbonyl)-4-(4-(3-methyl-1-phenyl-1H-pyra... Impurity CS-O-38438 Not Available Enquire
(4S)-1,9-Dioxaspiro[5.5]undecane-4-carboxylic acid Impurity CS-BL-00129 2381366-04-5 Enquire
(4S)-2-Hydroxy-2-methyl-4-thiazolidinecarboxylic Acid Impurity CS-O-43056 Not Available Enquire
(4S,5R)-3-(Tert-butoxycarbonyl)-2,2-dimethyl-4-phenyloxazoli... Impurity CS-O-32174 143527-70-2 In Stock
(4S,5R)-3-Benzoyl-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-... Impurity CS-DV-00215 949023-16-9 In Stock
(5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-... Impurity CS-O-38362 106560-13-8 Enquire
(5R,6S)-6-((R)-1-hydroxyethyl)-7-oxo-3-((S)-tetrahydrofuran-... Impurity CS-O-38363 106559-90-4 Enquire
(6R,7R)-3-Hydroxymethyl-7-((2-aminothiazol-4-yl)acetamido)ce... Impurity CS-T-79178 775233-43-7 Enquire
(R)-(-)-1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyrid... Impurity CS-T-18830 76093-33-9 Enquire
(R)-(+)-2,2-Dimethyl-1,3-dioxolane-4-carboxylic acid methyl ... Impurity CS-AC-08485 52373-72-5 Enquire
(R)-(+)-2-Pyrrolidone-5-carboxylic acid Impurity CS-T-41245 4042-36-8 Enquire
(R)-1-Benzyl-pyrrolidine-3-carboxylic acid Impurity CS-AC-01971 216311-57-8 Enquire
(R)-2-Thioxothiazolidine-4-carboxylic Acid Impurity CS-T-86533 98169-56-3 Enquire
(R)-3-methyl-5-(5-(3,4,5-trichlorophenyl)-5-(trifluoromethyl... Impurity CS-O-56385 3026845-89-3 Enquire
(R)-3-Piperidinecarboxylic acid methyl ester Impurity CS-MM-64897 164323-85-7 Enquire
(R)-Ofloxacin Carboxylic Acid (Dextrofloxacin Difluoro Impur... Impurity CS-T-83031 110548-07-7 Enquire
(R,R,R)-2-Azabicyclo[3.3.0]octane-3-carboxylic Acid Benzyl E... Impurity CS-T-48429 138877-09-5 Enquire
(S)-1-Boc-2,3-dihydro-2-pyrrolecarboxylic Acid Impurity CS-O-10632 178172-26-4 Enquire
(S)-2-Amino-5-guanidinopentanoic acid thiazolidine-2,4-dicar... Impurity CS-MM-10933 30986-62-0 Enquire
(S)-3-((1-methoxypropan-2-yl)amino)-4-methylthiophene-2-carb... Impurity CS-O-47006 Not Available Enquire
(S)-6-(tert-Butoxycarbonyl)-6-azaspiro[2.5]octane-5-carboxyl... Impurity CS-O-39675 1262396-32-6 Enquire
(S)-Dimethenamid 2-carboxylic acid impurity Impurity CS-O-46997 Not Available Enquire
(S)-Dimethenamid ethane sulfonic acid 2-carboxylic acid impu... Impurity CS-O-46998 Not Available Enquire
(S)-Dimethenamid-2-carboxylic acid Oxalic acid adduct Impurity CS-O-47004 Not Available Enquire
(S,S)-1,2-Cyclohexanedicarboxylic acid Impurity CS-DE-01553 21963-41-7 Enquire
(S,S,S)-2-Azabicyclo[3,3,0]-octane-carboxylic acid benzylest... Impurity CS-O-32393 87269-87-2 Enquire
[1,1-Biphenyl]-4-carboxylic acid [3aR-[3aa,4a(E),5b,6aa]]-4-... Impurity CS-DU-00062 118583-35-0 Enquire
1-((3-fluoro-4-(methylcarbamoyl)phenyl)amino)cyclobutane-1-c... Impurity CS-ED-01077 2227589-22-0 Enquire
1-(1-Phenylpropan-2-yl)-1H-pyrrole-2-carboxylic Acid Impurity CS-T-102286 1432680-68-6 Enquire
1-(2,2-Dihydroxyethyl)-5-methoxy-6-(methoxycarbonyl)-4-oxo-1... Impurity CS-O-60530 1616340-75-0 Enquire
1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboxylic a... Impurity CS-DL-00545 256376-59-7 Enquire
1-(4-Acetyl-2-ethylbenzyl)azetidine-3-carboxylic Acid Impurity CS-O-49143 2474774-17-7 Enquire
1-(Trifluoromethyl)cyclopropane-1-carboxylic acid methyl est... Impurity CS-M-08586 208242-25-5 Enquire
1,3,6,8-tetrahydroxy-9,10-dioxo-9,10-dihydroanthracene-2-car... Impurity CS-O-41092 Not Available Enquire
1,3-Thiazolidine-4-carboxylic acid Impurity CS-M-25842 444-27-9 Enquire
1,4-Dioxane-2-carboxylic acid Impurity CS-M-47435 89364-41-0 Enquire
1-[(Benzyloxy)carbonyl]pyrrolidine-2-carboxylic acid Impurity CS-M-25981 1148-11-4 Enquire
1-[2-(Dimethylamino)ethyl]-3-piperidinecarboxylic acid Impurity CS-O-52656 1156272-64-8 Enquire
1-[4-Chloro-2-(2-fluorobenzoyl)phenyl]-2-methyl-1H-Imidazole... Impurity CS-O-38214 151921-06-1 Enquire
1-[5-(Difluoromethoxy)-1H-benzimidazol-2-yl]-3-methoxy-4-oxo... Impurity CS-T-93679 2512209-15-1 Enquire
1-[6-Amino-9-(3,4-dihydroxy-5-hydroxymethyl-tetrahydrofuran-... Impurity CS-O-47370 Not Available Enquire
11-Alpha-20-Dihydro-corticosterone 21-Carboxylic Acid Impurity CS-O-46688 Not Available Enquire
11-Oxo-Betamethasone-17-Carboxylic Acid Impurity CS-F-00194 Not Available Enquire
17-Hydroxy-3,11-dioxo-androsta-1,4-diene-17ß-carboxylic Acid Impurity CS-T-78122 78261-67-3 Enquire
1-Aminocyclobutanecarboxylic Acid Impurity CS-T-02302 22264-50-2 Enquire
1-Azidocyclobutane -1-carboxylic acid Impurity CS-O-43225 1571067-14-5 Enquire
1-benzyl-4-ethyl-2,5-dihydro-1H-pyrrole-3-carboxylic acid Impurity CS-O-54949 2376462-10-9 Enquire
1-cyclopropyl-6,7-difluoro-1,4-dihydro-8- methoxy-4-oxo-3-qu... Impurity CS-O-31381 112811-72-0 In Stock
1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-qui... Impurity CS-O-41614 141290-02-0 Enquire
1-Cyclopropyl-6,7-dimethoxy-1,4-dihydro-4-oxo-quinoline-3-ca... Impurity CS-O-40575 1267935-86-3 Enquire
1H-Indazole-3-carboxylic acid Impurity CS-M-16725 4498-67-3 In Stock
1-Methyl-1H-indazole-3-carboxylic Acid Anhydride Impurity CS-T-58293 1363173-34-5 Enquire
1-Methyl-1H-indole-3-carboxylic acid Impurity CS-M-46942 32387-21-6 Enquire
2-(((Hydroxy-4-methyloctyl)oxy)carbonyl)cyclohexanecarboxyli... Impurity CS-T-79584 1637562-52-7 Enquire
2-(1-chloro-4-hydroxyisoquinoline-3-carboxamido)oxirane-2-ca... Impurity CS-O-46710 Not Available 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
(1R,4R)-4-aminocyclopent-2-ene-1-carboxylic acid Intermediate CS-ED-42141 102579-71-5 Enquire
(2R,5R)-5-Hydroxy[1,3]oxathiolane-2-carboxylic Acid L-Mentho... Intermediate CS-O-31943 147126-62-3 In Stock
(2S,3aS,7aS)-Octahydro-1H-indole-2-carboxylic Acid Intermediate CS-O-31669 80875-98-5 In Stock
(R)-1-(Boc)-5-oxopiperidine-2-carboxylic acid Intermediate CS-ED-42139 1273565-12-0 Enquire
(S)-(-)-Indoline-2-Carboxylic Acid Intermediate CS-BW-00064 79815-20-6 In Stock
1-(4-Fluorophenylcarbamoyl)cyclopropanecarboxylic acid Intermediate CS-O-32098 849217-48-7 In Stock
1,1-dioxo-hexahydro-16-thiopyran-4-carboxylic acid Intermediate CS-DV-00616 64096-87-3 In Stock
1-benzofuran-6-carboxylic acid Intermediate CS-O-16513 77095-51-3 In Stock
1H-[1,2,4]Triazole-3-carboxylic acid Intermediate CS-M-06445 4928-87-4 In Stock
1-phenylpyrrolidine-2-carboxylic acid Intermediate CS-O-49660 1252657-81-0 Enquire
2,4,6,7-Tetrahydropyrano[4,3-c]pyrazole-3-carboxylic acid Intermediate CS-O-49653 933694-89-4 Enquire
2'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid Intermediate CS-T-102297 376591-95-6 Enquire
2-Hydroxymethylmorpholine-4-carboxylic Acid tert-Butyl Ester Intermediate CS-T-79434 135065-69-9 In Stock
3-(2-chlorobenzyl)-2,3-dihydro-4-methyl-2-oxothiazole-5-carb... Intermediate CS-O-55467 1330095-41-4 Enquire
3-(2-fluorobenzyl)-2,3-dihydro-4-methyl-2-oxothiazole-5-carb... Intermediate CS-O-55468 1267076-32-3 Enquire
3-(4-fluorobenzyl)-2,3-dihydro-4-methyl-2-oxothiazole-5-carb... Intermediate CS-O-55465 1267631-23-1 Enquire
3-(Difluoromethyl)-1H-pyrazole-4-carboxylic Acid Intermediate CS-T-91711 151734-02-0 In Stock
3,4-Epoxycyclohexane carboxylic acid, methyl ester Intermediate CS-CF-00019 41088-52-2 In Stock
3,6-Dichloroxanthene-9-carboxylic acid Intermediate CS-O-49810 136453-32-2 Enquire
3-Amino-2-hydroxy-[1,1-biphenyl]-3-carboxylic acid Intermediate CS-O-32091 376592-93-7 In Stock
3'-amino-2'-methoxy-[1,1'-biphenyl]-3-carboxylic acid Intermediate CS-SN-00150 1176777-76-6 Enquire
3-benzyl-2,3-dihydro-4-methyl-2-oxothiazole-5-carboxylic aci... Intermediate CS-O-55464 1176679-10-9 Enquire
3-Methylnaphtho[1,2-b]furan-2-carboxylic acid Intermediate CS-BL-00171 32730-10-2 Enquire
3-Oxo-4-Androsten-17-Beta-Carboxylic Acid Intermediate CS-O-31524 302-97-6 In Stock
3-phenylisoquinoline-1-carboxylic acid Intermediate CS-O-55444 92566-89-7 Enquire
3-Quinolinecarboxylic acid, 1,4-dihydro-6-[[methyl(2-methylp... Intermediate CS-O-55456 434908-00-6 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, 6-[[(2-ethylphenyl)methylamino]s... Intermediate CS-O-55457 434907-96-7 Enquire
3-Quinolinecarboxylic acid, 6-[[(4-ethylphenyl)methylamino]s... Intermediate CS-O-55460 434907-95-6 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-amino-5-chlor-2,3-dihydro-7-benzofurancarboxylic acid Intermediate CS-O-32073 123654-26-2 In Stock
4-bromo-1-hydroxyanthraquinone-2-carboxylic acid Intermediate CS-ED-42177 320576-21-4 Enquire
4-chloro-6-oxo-1,6-dihydropyridazine-3-carboxylic acid Intermediate CS-O-49298 1782896-18-7 Enquire
4-cyclopropyl-4H-1,2,4-triazole-3-carboxylic acid Intermediate CS-O-49532 1547004-36-3 Enquire
4-Methoxy-3,5-dimethylpyridine-2-carboxylic acid Intermediate CS-ED-42314 138569-60-5 Enquire
4-methylbiphenyl-2-carboxylic acid methyl ester Intermediate CS-O-31540 114772-34-8 In Stock
5,7-Dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic Aci... Intermediate CS-BX-01103 1289646-93-0 In Stock
5,7-Dichloro-2-trityl-1,2,3,4-tetrahydroisoquinoline-6-carbo... Intermediate CS-O-57659 1194550-56-5 Enquire
5-Fluoropyrimidine-2-carboxylic acid Intermediate CS-O-47752 1196151-51-5 Enquire
5-Hydroxymethyl-furan-2-carboxylic acid Intermediate CS-M-05198 6338-41-6 In Stock
5-Methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid Intermediate CS-O-49631 1198095-99-6 Enquire
5-Methylisoxazole-4-carboxylic Acid Intermediate CS-O-32251 42831-50-5 In Stock
5-Oxo-1-phenylpyrrolidine-2-carboxylic acid Intermediate CS-O-49658 18133-18-1 Enquire
6-fluro-4-oxo-1benzopyran-2-carboxylic acid Intermediate CS-O-10635 99199-59-4 In Stock
7-Amino-3-vinyl-3-cephem-4-carboxylic Acid Intermediate CS-T-03607 79349-82-9 In Stock
7-bromo-2-(tert-butoxycarbonyl)-5-chloro-1,2,3,4-tetrahydroi... Intermediate CS-O-49951 2832100-74-8 Enquire
8,9-Difluoro-5-methyl-1-oxo-1,5,6,7-tetrahydropyrido[3,2,1-i... Intermediate CS-O-16527 80076-47-7 In Stock
9-Acridinecarboxylic acid Intermediate CS-BO-00005 5336-90-3 In Stock
Boc-trans-2-aminocyclopentanecarboxylic acid Intermediate CS-O-49661 136315-71-4 Enquire
Emtricitabine Carboxylic Acid Intermediate CS-T-21604 1238210-10-0 In Stock
Furo[3,2-c]pyridine-4-carboxylic acid Intermediate CS-O-49638 190957-82-5 Enquire
Ibuprofen Carboxylic Acid Intermediate CS-T-56568 15935-54-3 Enquire
Indole-3-carboxylic Acid Intermediate CS-M-06233 771-50-6 In Stock


Glucuronide

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
5-Methoxyindole-3-carboxylic Acid Glucuronide Glucuronide CS-O-35392 242802-03-5 Enquire
6-(4-ethoxy-3-(morpholin-2-ylmethoxy)phenoxy)-3,4,5-trihydro... Glucuronide CS-O-40597 Not Available Enquire
Niraparib Carboxylic Acid Glucuronide Glucuronide CS-EO-03033 Not Available Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(1-(carboxymethyl)cyclopentyl)methanetricarboxylic acid Fine Chemicals CS-O-39922 Not Available Enquire
(1R)-2,2-dimethyl-3-((Z)-3,3,3-trifluoroprop-1-en-1-yl)cyclo... Fine Chemicals CS-O-56392 1219734-00-5 Enquire
(1R,2R)-2-(((methylsulfonyl)oxy)methyl)cyclohexanecarboxylic... Fine Chemicals CS-O-60797 ---- Enquire
(1R,2R)-2-hydroxycyclopentanecarboxylic acid Fine Chemicals CS-O-54441 1443511-34-9 Enquire
(1R,2R)-2-phenylcyclobutanecarboxylic acid Fine Chemicals CS-O-38157 1932632-04-6 Enquire
(1R,2S)-2-phenylcyclobutanecarboxylic acid Fine Chemicals CS-O-38156 1932319-16-8 Enquire
(1R,3R)-2,2-Dimethyl-3-[(Z)-prop-1-enyl]cyclopropanecarboxyl... Fine Chemicals CS-O-56389 84368-70-7 Enquire
(1R,3R)-3-((E)-2-cyanoprop-1-en-1-yl)-2,2-dimethylcyclopropa... Fine Chemicals CS-O-56390 1052115-15-7 Enquire
(1R,3R)-3-[(1E)-3-Methoxy-2-methyl-3-oxo-1-propen-1-yl]-2,2-... Fine Chemicals CS-O-56391 26767-71-5 Enquire
(1S,​2R)​-​2-​phenylcyclobutane-​1-​carboxylic acid Fine Chemicals CS-O-38158 1932603-54-7 Enquire
(1S,2S)-2-phenylcyclobutanecarboxylic acid Fine Chemicals CS-O-38159 1714087-99-6 Enquire
(1S,3R)-3-(2,2-difluorovinyl)-2,2-dimethylcyclopropanecarbox... Fine Chemicals CS-O-56393 94668-24-3 Enquire
(1s,3s)-cyclobutane-1,3-dicarboxylic acid Fine Chemicals CS-O-39267 2398-16-5 Enquire
(2R)-1-Phenyl-2-azetidinecarboxylic acid Fine Chemicals CS-O-38164 255883-30-8 Enquire
(2R,4S)-4-Phenylpyrrolidine-2-carboxylic acid Fine Chemicals CS-ZJ-27656 1217806-82-0 Enquire
(2S)-1-Phenyl-2-azetidinecarboxylic acid Fine Chemicals CS-O-38165 255883-05-7 Enquire
(2S,4E)-1-methyl-4-propylidenepyrrolidine-2-carboxylic acid Fine Chemicals CS-O-36195 Not Available Enquire
(2S,4R)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-methoxypyrr... Fine Chemicals CS-ZB-31152 244132-31-8 Enquire
(2S,4S)-1-Fmoc-4-azidopyrrolidine-2-carboxylic acid Fine Chemicals CS-ZH-02817 263847-08-1 Enquire
(3S,4R)-1-((benzyloxy)carbonyl)-4-ethylpyrrolidine-3-carboxy... Fine Chemicals CS-O-37116 1428243-69-9 Enquire
(3S,4S)-1-((benzyloxy)carbonyl)-4-ethylpyrrolidine-3-carboxy... Fine Chemicals CS-O-37117 2350526-26-8 Enquire
(S)-1,2,3,4-Tetrahydroisoquinoline-1-Carboxylic Acid Fine Chemicals CS-MM-50763 151004-92-1 In Stock
(S)-3-Amino-1-(tert-butoxycarbonyl)pyrrolidine-3-carboxylic ... Fine Chemicals CS-BL-00102 1931923-61-3 Enquire
(S)-oxirane-2-carboxylic acid Fine Chemicals CS-O-53764 114990-90-8 Enquire
1-(1-(tert-butoxycarbonyl)azetidin-3-yl)-1h-pyrazole-4-carbo... Fine Chemicals CS-O-36717 1785380-40-6 Enquire
1-(5-bromothiophen-2-yl)cyclopropane-1-carboxylic acid Fine Chemicals CS-O-37418 1368719-33-8 Enquire
1-(ethoxycarbonyl)cyclopropane-1-carboxylic acid Fine Chemicals CS-O-50190 3697-66-3 Enquire
1,1-Cyclopropanedicarboxylic Acid Fine Chemicals CS-T-74034 598-10-7 In Stock
1,2-Cyclopentanedicarboxylic acid Fine Chemicals CS-ZH-11109 50483-99-3 Enquire
1,9-DIOXASPIRO[5.5]UNDECANE-4-CARBOXYLIC ACID Fine Chemicals CS-BL-00128 Not Available Enquire
1-Benzyl-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-M-09303 401647-24-3 Enquire
1-CYCLOPROPYL-6-FLUORO-5-METHYL-7-(3-METHYLPIPERAZIN-1-YL)-4... Fine Chemicals CS-ZJ-12657 161967-81-3 Enquire
1H-1,2,3-Triazole-4,5-dicarboxylic acid Fine Chemicals CS-ZG-92244 4546-95-6 Enquire
1-Methyl-9H-beta-carboline-3-carboxylic acid Fine Chemicals CS-MM-42224 22329-38-0 Enquire
2-​(methoxymethyl)​pyrimidine-​5-​carboxylic acid Fine Chemicals CS-P-08549 927803-37-0 Enquire
2-(2-Carboxy-phenyl)-pyrrolidine-1-carboxylic acid tert-buty... Fine Chemicals CS-O-38154 889953-35-9 Enquire
2,4-Pyridinedicarboxylic acid monohydrate Fine Chemicals CS-ED-42121 207671-42-9 Enquire
2,6-Dichloropyridine-3-carboxylic acid Fine Chemicals CS-M-06282 38496-18-3 In Stock
2-{[(methanesulfonyl)oxy]methyl}cyclohexane-1-carboxylic aci... Fine Chemicals CS-O-60798 ---- Enquire
2-Amino-1H-benzo[d]imidazole-5-carboxylic acid Fine Chemicals CS-ZE-06047 76391-97-4 In Stock
2-Amino-3-cyano-4-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene... Fine Chemicals CS-O-41054 1530793-63-5 Enquire
2-Amino-3-methyl-3H-imidazo[4,5-b]pyridine-6-carboxylic Acid Fine Chemicals CS-O-60051 1001754-93-3 Enquire
2-Amino-5-methylthiophene-3-carboxylic acid Fine Chemicals CS-EL-30829 41940-47-0 In Stock
2-Aminothiazole-4-carboxylic acid Fine Chemicals CS-M-09676 40283-41-8 In Stock
2-azabicyclo[3.1.0]hexane-6-carboxylic acid Fine Chemicals CS-O-54685 1559174-53-6 Enquire
2-Benzofurancarboxylic acid, 5-(1-piperazinyl)-, ethyl ester... Fine Chemicals CS-ZE-30694 1422956-31-7 Enquire
2-Bromo-5-Thiazolecarboxylic Acid Fine Chemicals CS-M-52505 54045-76-0 In Stock
2-Bromonaphthalene-1-carboxylic Acid Fine Chemicals CS-TA-76889 17542-05-1 Enquire
2-chloro-5,6,7,8-tetrahydro-3-quinolinecarboxylic acid Fine Chemicals CS-ZB-14344 99058-34-1 Enquire
2-chloro-5,7-dihydrofuro[3,4-b]pyridine-3-carboxylic acid Fine Chemicals CS-O-36093 1501220-44-5 Enquire
2-chloro-7,8-dihydro-5H-pyrano[4,3-b]pyridine-3-carboxylic a... Fine Chemicals CS-O-36092 1509078-81-2 Enquire
2-furan carboxylic acid anhydride Fine Chemicals CS-DV-01723 615-08-7 In Stock
2-Methoxy-5-methyl-4-pyridinecarboxylic acid Fine Chemicals CS-O-38071 1211581-36-0 Enquire
2-methoxycyclopropanecarboxylic acid Fine Chemicals CS-ED-42208 53381-04-7 Enquire
2-Methyl-1,3-thiazole-4-carboxylic acid Fine Chemicals CS-M-33703 35272-15-2 In Stock
2-Phenyl-1,3-oxazole-4-carboxylic acid Fine Chemicals CS-MM-04594 23012-16-0 Enquire
3-(((benzyloxy)carbonyl)amino)bicyclo[1.1.1]pentane-1-carbox... Fine Chemicals CS-O-37419 1935125-14-6 Enquire
3,4-dichlorothiophene-2-carboxylic acid Fine Chemicals CS-ZB-32149 61209-02-7 Enquire
3,4-dimethylcyclopent-3-ene carboxylic acid Fine Chemicals CS-O-34972 768-38-7 Enquire
3,5-Pyrazoledicarboxylic acid monohydrate Fine Chemicals CS-O-53167 303180-11-2 Enquire
3,5-Pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(3... Fine Chemicals CS-ZH-30364 74936-76-8 Enquire
3-Amino-4,5-dimethylthiophene-2-carboxylic acid Fine Chemicals CS-O-37394 98547-43-4 Enquire
3'-Amino-5'-chloro-2'-hydroxy-[1,1'-biphenyl]-3-carboxylic a... Fine Chemicals CS-T-94094 1428987-67-0 Enquire
3-Chloro-6,7,8,9-tetrahydro-5H-carbazole-4-carboxylic acid Fine Chemicals CS-MM-41610 876885-94-8 Enquire
3-Hydroxypyridine-2-carboxylic acid Fine Chemicals CS-M-06317 874-24-8 In Stock
3-Isobutyl-1-methyl-4-nitro-1H-pyrazole-5-carboxylic acid Fine Chemicals CS-ZH-28632 1004455-71-3 Enquire
3-Methylisoxazole-4-carboxylic Acid Fine Chemicals CS-T-34159 17153-20-7 Enquire
3-methylquinoline-8-carboxylic acid Fine Chemicals CS-O-36579 94975-85-6 Enquire
3-Methyl-quinoxaline-2-carboxylic acid Fine Chemicals CS-M-10811 74003-63-7 Enquire
3-Thiomorpholinecarboxylic acid, 5-oxo-, 1-oxide Fine Chemicals CS-ZG-87646 88620-38-6 Enquire
4-((tert-Butoxycarbonyl)amino)-2-oxabicyclo[2.2.2]octane-1-c... Fine Chemicals CS-ED-42130 2010218-26-3 Enquire
4-((tert-Butoxycarbonyl)amino)piperidine-4-carboxylic acid Fine Chemicals CS-O-59013 252720-31-3 Enquire
4,4-difluorotetrahydro-2H-pyran-2-carboxylic acid Fine Chemicals CS-ED-01652 2227205-32-3 Enquire
4,5,6,7-Tetrahydro-1H-benzoimidazole-5-carboxylic acid hydro... Fine Chemicals CS-MM-00121 131020-57-0 Enquire
4,6-Bis(trifluoromethyl)-3-pyridinecarboxylic acid Fine Chemicals CS-O-51901 1105997-88-3 Enquire
4,6-Dimethyl-2-oxo-2H-pyran-5-carboxylic acid Fine Chemicals CS-EL-27221 480-65-9 In Stock
4-bromobenzofuran-3-carboxylic acid Fine Chemicals CS-O-39032 1823891-85-5 Enquire
4-Bromopyridine-2,6-dicarboxylic acid Fine Chemicals CS-ZH-04123 162102-81-0 Enquire
4-Methyl-1H-pyrrolo[2,3-b]pyridine-6-carboxylic Acid Fine Chemicals CS-O-60054 1638760-99-2 Enquire
5-(4-phenoxyphenyl)-1H-pyrazole-4-carboxylic acid Fine Chemicals CS-O-60751 1266461-63-5 Enquire
5-(m-tolyl)oxazole-4-carboxylic acid Fine Chemicals CS-O-41001 914220-25-0 Enquire
5-(trifluoromethyl)benzofuran-2-carboxylic acid Fine Chemicals CS-O-37933 531524-04-6 Enquire
5,5-difluorooxane-2-carboxylic acid Fine Chemicals CS-ZB-33598 1426135-66-1 Enquire
5,5-dimethyloxolane-2-carboxylic acid Fine Chemicals CS-O-58996 7433-82-1 Enquire
5,6-Dihydroxyindoline-2-carboxylic acid Fine Chemicals CS-DV-00936 18791-20-3 Enquire
5-bromo-2-methyl-2,3-dihydrobenzofuran-3-carboxylic acid Fine Chemicals CS-O-38188 1781798-23-9 Enquire
5-bromoindoline-3-carboxylic acid Fine Chemicals CS-O-38182 1368633-81-1 Enquire
5'-bromospiro[cyclopropane-1,2'-indoline]-3'-carboxylic acid Fine Chemicals CS-O-38183 2167145-71-1 Enquire
5-Bromothiophene-2-carboxylic acid Fine Chemicals CS-M-01840 7311-63-9 Enquire
5-Chlorosulfonyl-furan-3-carboxylic acid ethyl ester Fine Chemicals CS-MM-49252 256373-91-8 Enquire
5-Chlorothiophene-2-carboxylic acid Fine Chemicals CS-O-31250 24065-33-6 In Stock
5-hydroxy-2,3-dihydrobenzofuran-3-carboxylic acid Fine Chemicals CS-O-38185 1554661-46-9 Enquire
5-hydroxy-2-methylindoline-3-carboxylic acid Fine Chemicals CS-O-38180 1896809-73-6 Enquire
5-hydroxyindoline-3-carboxylic acid Fine Chemicals CS-O-38178 1892954-72-1 Enquire
5-Methyl-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-c... Fine Chemicals CS-MM-78524 103058-77-1 Enquire
5-methyl-2-phenylpyrimidine-4-carboxylic acid Fine Chemicals CS-O-37953 1546282-16-9 Enquire
5-Methyl-3H-imidazo[4,5-b]pyridine-6-carboxylic Acid Fine Chemicals CS-O-60052 2166954-77-2 Enquire
5-Nitro-1H-pyrazole-3-carboxylic acid Fine Chemicals CS-M-16895 198348-89-9 Enquire
6-Amino-5-chloro-2-cyclopropylpyrimidine-4-carboxylic acid Fine Chemicals CS-ZH-10983 858956-08-8 Enquire
6-Azabicyclo[3.1.1]heptane-1-carboxylic acid Fine Chemicals CS-O-51690 1893811-75-0 Enquire


Nitrosamine

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2S,3aR,7aS)-1-nitrosooctahydro-1H-indole-2-carboxylic acid Nitrosamine CS-O-52957 Not Available In Stock
(2S,3aS,6aS)-1-nitrosooctahydrocyclopenta[b]pyrrole-2-carbox... Nitrosamine CS-O-52956 Not Available In Stock
(2S,3aS,7aS)-1-Nitrosooctahydro-1H-indole-2-carboxylic acid Nitrosamine CS-BX-03007 2912492-21-6 In Stock
(2S,4S)-4-cyclohexyl-1-nitrosopyrrolidine-2-carboxylic acid Nitrosamine CS-O-53064 ---- Enquire
(4R)-N-Nitroso Thiazolidine-4-carboxylic Acid ( Mix of isome... Nitrosamine CS-T-83005 86594-16-3 In Stock
(S)-1-Nitroso-5-oxopyrrolidine-2-carboxylic Acid Nitrosamine CS-O-60316 80754-96-7 Enquire
1-nitroso-1H-indazole-3-carboxylic acid Nitrosamine CS-O-39902 Not Available Enquire
1-nitrosoazetidine-3-carboxylic acid Nitrosamine CS-O-53193 102624-97-5 In Stock
1-nitroso-Ivacaftor-3-carboxylic acid ethylester Nitrosamine CS-O-46070 ---- Enquire
3-(2-aminoethyl)-5-methoxy-1-nitroso-1H-indole-2-carboxylic ... Nitrosamine CS-O-46704 Not Available Discontinued
5-Nitro-1H-indazole-3-carboxylic acid Nitrosamine CS-O-54777 78155-76-7 Enquire
9-fluoro-2,3-dihydro-3-methyl-10-(N-nitroso-2-aminoethyl)-7-... Nitrosamine CS-O-57779 ---- Enquire
N-Nitroso Nicardipine Carboxylic Acid Derivative Nitrosamine CS-O-47988 ---- Discontinued
N-Nitroso Vildagliptin Carboxylic Acid Nitrosamine CS-O-41609 ---- In Stock
N-Nitroso Vildagliptin Carboxylic Acid-(R-Isomer) Nitrosamine CS-O-56437 ---- Enquire
rac N-Nitroso Thiazolidine-4-carboxylic Acid Nitrosamine CS-T-37304 88381-44-6 Enquire
rac-N-Nitroso Tolterodine Monoisopropyl 5-Carboxylic Acid Nitrosamine CS-O-57588 ---- Enquire


Deuterated Reagents

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(METHOXY-D3)PYRIDINE-3-CARBOXYLIC ACID Deuterated Reagents CS-O-42448 16498-81-0 (unlabelled) Enquire
2-(METHOXY-D3)PYRIDINE-4-CARBOXYLIC ACID Deuterated Reagents CS-O-42449 105596-63-2 (unlabelled) Enquire
2-[(METHYL-D3)AMINO]PYRIDINE-3-CARBOXYLIC ACID Deuterated Reagents CS-O-42458 32399-13-6 (unlabelled) Enquire
2-[(METHYL-D3)AMINO]PYRIDINE-4-CARBOXYLIC ACID Deuterated Reagents CS-O-42459 876717-53-2 (unlabelled) Enquire
2-[DI(METHYL-D3)AMINO]PYRIDINE-3-CARBOXYLIC ACID Deuterated Reagents CS-O-42461 883787-29-9 (unlabelled) Enquire
2-[DI(METHYL-D3)AMINO]PYRIDINE-4-CARBOXYLIC ACID Deuterated Reagents CS-O-42462 77314-81-9 (unlabelled) Enquire
3-[2,2,2-D3)ACETAMIDO]PYRIDINE-2-CARBOXYLIC ACID Deuterated Reagents CS-O-42482 3303-18-2(unlabelled) Enquire
3-[2,2,2-D3)ACETAMIDO]PYRIDINE-4-CARBOXYLIC ACID Deuterated Reagents CS-O-42483 215103-12-1(unlabelled) Enquire
4-[(2,2,2-d3)acetamido]pyridine-2-carboxylic acid Deuterated Reagents CS-O-42289 84487-16-1(unlabelled) Enquire
4-[(2,2,2-d3)acetamido]pyridine-3-carboxylic acid Deuterated Reagents CS-O-42290 60770-86-7(unlabelled) Enquire
5-[(2,2,2-d3)acetamido]pyridine-2-carboxylic acid Deuterated Reagents CS-O-42313 86873-62-3(unlabelled) Enquire
5-[(2,2,2-d3)acetamido]pyridine-3-carboxylic acid Deuterated Reagents CS-O-42314 82817-65-0(unlabelled) Enquire
6-(methoxy-d3)pyridine-2-carboxylic acid Deuterated Reagents CS-O-42317 26893-73-2(unlabel) Enquire
6-(methoxy-d3)pyridine-3-carboxylic acid Deuterated Reagents CS-O-42318 2222818-25-7 Enquire
6-[(2,2,2-d3)acetamido]pyridine-2-carboxylic acid Deuterated Reagents CS-O-42327 26893-72-1(unlabelled) Enquire
6-[(methyl-d3)amino]pyridine-2-carboxylic acid Deuterated Reagents CS-O-42328 1250806-91-7(unlabel) Enquire
6-[(methyl-d3)amino]pyridine-3-carboxylic acid Deuterated Reagents CS-O-42329 262296-02-6(unlabel) Enquire
6-[di(methyl-d3)amino]pyridine-2-carboxylic acid Deuterated Reagents CS-O-42330 30721-88-1(unlabel) Enquire
6-[di(methyl-d3)amino]pyridine-3-carboxylic acid Deuterated Reagents CS-O-42331 82846-28-4(unlabel) Enquire


Heterocyclic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1-oxo-2,3-dihydro-1H-isoindole-5-carboxylic acid Heterocyclic CS-EL-23733 23386-40-5 Enquire


Chiral

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(4S,5R)-2-(4-methoxy-phenyl)-3-N-BOC-4-phenyl-3, 5-oxazolidi... Chiral CS-DV-00214 196404-55-4 In Stock
R-1,2,3,4-Tetrahydro-3-Isoquinolinecarboxylic Acid Chiral CS-BB-00042 103733-65-9 In Stock
Tolterodine Monoisopropyl 5-Carboxylic Acid Racemate Chiral CS-T-10367 214601-13-5 In Stock


MISCELLANEOUS

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(2-carboxyethyl)-4-methyl-5-pentylfuran-3-carboxylic acid MISCELLANEOUS CS-O-60707 73248-95-0 Enquire
Cyclohexanecarboxylic acid MISCELLANEOUS CS-M-58375 98-89-5 In Stock


Pharmaceutical Stds.

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
11-O-Ethoxycarbonyl loteprednol etabonate 17-carboxylic acid Pharmaceutical Stds. CS-TB-43891 133991-62-5 Enquire


Stable Isotope Reagent

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(±)-2-Thioxothiazolidine-4,5,5-d3-4-carboxylic Acid Stable Isotope Reagent CS-C-01696 Not Available Enquire
1-methyl-d3-1H-pyrazole-4-carboxylic acid Stable Isotope Reagent CS-O-48091 2919955-56-7 Enquire
3-Methoxy-1-methyl-3-azetidinecarboxylic acid-2,2,4,4-d4 Stable Isotope Reagent CS-O-54638 1892579-67-7 (Unlabelled) Enquire
4-Amino-2-methyl-d 3 -5-pyrimidinecarboxylic Acid Stable Isotope Reagent CS-C-01661 Not Available Enquire
9-Anthracene-d9 -carboxylic Acid Stable Isotope Reagent CS-C-01673 1219803-78-7 Enquire
Cyclopentane-carboxylic acid methyl ester D8 Stable Isotope Reagent CS-O-52792 2469103-32-8 Enquire
Cyclopentanecarboxylic acid-d9 Stable Isotope Reagent CS-O-45354 1254047-34-1 In Stock
Cyclopropanecarboxylic acid-d4 Stable Isotope Reagent CS-CX-00439 89924-82-3 In Stock
Indole-3-carboxylic Acid-d5 Stable Isotope Reagent CS-T-98646 771-50-6(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
(3aS,4S,6aS)-2,2-dimethyl-6-oxotetrahydro-3aH-[1,3]dioxolo[4... Building Blocks CS-O-46880 1654009-11-6 Enquire
(3R,4R,5R)-4-(1-Ethylpropoxy)-3-hydroxy-5-[(methylsulfonyl)o... Building Blocks CS-T-54583 204254-94-4 Enquire
(R)-Piperazine-2-carboxylic acid dihydrochloride Building Blocks CS-M-57532 126330-90-3 In Stock
(S)-1-Methyl-5-oxopyrrolidine-2-carboxylic acid Building Blocks CS-T-95985 52574-06-8 Enquire
1-(4-Bromophenyl)-5-(trifluoromethyl)-1H-1,2,3-triazole-4-ca... Building Blocks CS-T-95826 1221724-13-5 Enquire
1,2,4,5-Benzenetetracarboxylic acid Building Blocks CS-BX-02752 89-05-4 Enquire
1,3-Thiazolane-2,4-dicarboxylic acid Building Blocks CS-M-31548 30097-06-4 In Stock
1,4-Dimethylpiperidine-4-carboxylic Acid Hydrochloride Building Blocks CS-TB-22488 1185325-87-4 Enquire
1-bromocyclobutane-1-carboxylic acid Building Blocks CS-TA-53266 32122-23-9 Enquire
1-dodecanoylpyrrolidine-2-carboxylic acid Building Blocks CS-O-47952 Not Available Enquire
1H-Pyrrole-2,5-dicarboxylic Acid Building Blocks CS-ED-41549 937-27-9 Enquire
1-hydroxyisoquinoline-5-carboxylic acid Building Blocks CS-O-45042 212374-18-0 Enquire
2,​3-​dihydro-​1H-​pyrrolizine-​1-​carboxylic acid Building Blocks CS-T-95915 83820-75-1 In Stock
2-benzyl-1H-imidazole-4-carboxylic acid Building Blocks CS-ED-01255 102625-29-6 Enquire
2-benzyloxazole-4-carboxylic acid Building Blocks CS-ED-01254 53697-48-6 Enquire
2-dodecanoylcyclopentanecarboxylic acid Building Blocks CS-O-47945 Not Available Enquire
2-Fluoro-6-methoxypyridine-3-carboxylic Acid Building Blocks CS-TB-54303 1211515-88-6 Enquire
2-Methyl-4-[(phenylmethyl)oxy]-1H-benzimidazole-6-carboxylic... Building Blocks CS-O-47879 942195-83-7 Enquire
3,3-diphosphono-1,2-propane dicarboxylic acid tetrasodium sa... Building Blocks CS-ED-41599 Not Available Enquire
3,4,5-Tribromo-2-thiophenecarboxylic acid Building Blocks CS-O-52369 53317-05-08 Enquire
3-Fluorocyclopentanecarboxylic Acid Building Blocks CS-TB-51978 1508595-64-9 Enquire
4-Amino-6-hydroxy-1,3-benzenedicarboxylic acid Building Blocks CS-T-95810 15540-79-1 Enquire
4-Bromoisoquinoline-1-carboxylic Acid Building Blocks CS-TA-64851 1179149-25-7 Enquire
4-chloro-5-hydroxy-pyridine-2-carboxylic acid Building Blocks CS-O-36743 1060804-56-9 Enquire
4-chloroquinoline-2-carboxylic Acid Building Blocks CS-TB-06234 15733-82-1 Enquire
4-Fluorotetrahydro-2H-pyran-4-carboxylic acid Building Blocks CS-T-95949 1150617-62-1 Enquire
4-octene-1,8-dicarboxylic acid Building Blocks CS-ED-00972 39516-91-1 Enquire
5-(1-Piperazinyl)-2-benzofurancarboxylic Acid Methyl Ester Building Blocks CS-TA-36290 1186225-86-4 Enquire
5-benzyl-1,2,4-oxadiazole-3-carboxylic Acid Building Blocks CS-TA-74541 19706-09-3 Enquire
5-benzyl-1,3,4-oxadiazole-2-carboxylic acid Building Blocks CS-ED-01256 1267003-13-3 Enquire
5-benzyl-1-methyl-1H-pyrazole-3-carboxylic acid Building Blocks CS-O-36556 2089059-09-4 Enquire
5-benzylthiazole-2-carboxylic acid Building Blocks CS-ED-01253 2124262-00-4 Enquire
6-Chloro-3-hydroxypyridazine-4-carboxylic acid Building Blocks CS-T-71586 50681-26-0 Enquire
6-cyano-1H-indole-2-carboxylic Acid Building Blocks CS-ED-41480 85864-09-1 Enquire
6-Fluoro-2-phenyl-4-quinolinecarboxylic acid Building Blocks CS-O-55368 1647-88-7 Enquire
6-Methoxy-2-methyl-4-quinolinecarboxylic acid Building Blocks CS-O-55362 78533-10-5 Enquire
6-methylsulfonyl-1H-indole-2-carboxylic acid Building Blocks CS-O-45045 383132-63-6 Enquire
cis-6-Amino-cyclohex-3-enecarboxylic acid Building Blocks CS-TA-09019 54162-90-2 Enquire
Fmoc-(2S,3aS,7aS)-Octahydro-1H-indole-2-carboxylic acid Building Blocks CS-M-29838 130309-37-4 Enquire
S)-N-Fmoc-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid Building Blocks CS-M-29737 136030-33-6 Enquire


Therapeutic

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(6R,7R)-7-Amino-3-ethenyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oc... Therapeutic CS-O-15249 79349-67-0 In Stock
Brivaracetam Carboxylic acid Therapeutic CS-O-33755 943986-67-2 In Stock
Diclofenac Carboxylic Acid Therapeutic CS-T-17657 13625-57-5 In Stock
Fluticasone 17-β-Carboxylic Acid Therapeutic CS-T-54984 28416-82-2 Enquire
Losartan Carboxylic Acid Therapeutic CS-O-10324 124750-92-1 In Stock
Nicardipine Carboxylic acid Derivative Therapeutic CS-O-31770 74936-72-4 In Stock
Rabeprazole Carboxylic Acid Impurity Therapeutic CS-O-15935 1163685-31-1 In Stock