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

Carbamic Acid Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2,3,3a,4,7,7a-Hexahydro-2-methyl-1,3-dioxo-1H-isoindol-4-yl... Stable Isotopes CS-T-98371 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
(3R-cis)-(4-Methyl-3-pyrrolidinyl)-carbamic Acid 1,1-Dimethy... Stable Isotopes CS-T-99970 Not Available Enquire
(4-((3-Acetamidopropyl)(tert-butoxycarbonyl)amino)butyl)(3-(... Stable Isotopes CS-T-102768 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-[(2,6-Dimethylphenyl)amino]-2-oxoethyl]carbamic Acid-d6 1... Stable Isotopes CS-T-100544 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
Ethylcarbamic Acid 4-Piperidinyl-d4 Ester Stable Isotopes CS-T-102885 70724-24-2(Unlabelled) Enquire
Methylpropylcarbamic Acid 1,1-Dimethylethyl Ester-D3 Stable Isotopes CS-T-99993 2733841-72-8 Enquire
N-[(1S)-1-(Hydroxymethyl)-3-phenylpropyl]carbamic Acid-d2 Ph... Stable Isotopes CS-T-97422 ---- Enquire
N-[(3R,4S)-4-Methyl-3-pyrrolidinyl]-carbamic Acid 1,1-Dimeth... Stable Isotopes CS-T-99971 Not Available Enquire
N-[[4-[[(4-Amino[1,1'-biphenyl]-3-yl)amino]carbonyl]phenyl]m... Stable Isotopes CS-T-100903 Not Available Enquire
N-[[4-[[[4-[[tert-Butyloxycarbonyl]amino][1,1'-biphenyl]-3-y... Stable Isotopes CS-T-100706 Not Available Enquire
N-[[4-[2-[[(3-Ethyl-2,5-dihydro-4-methyl-2-oxo-1H-pyrrol-1-y... Stable Isotopes CS-T-97522 1028809-96-2 Enquire
N-[2-Ethoxy-d5-1-[[2'-[(hydroxyamino)methyl][1,1'-biphenyl]-... Stable Isotopes CS-T-101414 1795131-16-6 Enquire
N-[3-Fluoro-4-[6-(2-methyl-2H-tetrazol-5-yl)-3-pyridinyl]phe... Stable Isotopes CS-T-100298 Not Available Enquire
N-Ethylcarbamic Acid 3-[(1S)-1-(Dimethylamino)ethyl]phenyl E... Stable Isotopes CS-T-97524 Not Available Enquire
Propane-1,3-diylbis((3-acetamidopropyl)carbamic Acid) di-ter... Stable Isotopes CS-T-102767 Not Available Enquire
(1-Methylethyl)carbamic Acid-d7 Phenyl Ester Stable Isotopes CS-T-81470 1329835-22-4 Enquire
(4-((3-Acetamidopropyl)amino)butyl)carbamic Acid tert-Butyl ... Stable Isotopes CS-T-94343 Not Available Enquire
[2-(Methylsulfonyl)ethyl]carbamic Acid 13C2,15N Benzyl Ester Stable Isotopes CS-T-58572 1215476-69-9 Enquire
4-[4-(4-O-Methoxymethyl-4-hydroxyphenyl)-1-piperazinyl]pheny... Stable Isotopes CS-T-57753 1246817-73-1 Enquire
Diethyldithiocarbamic Acid-d10 Sodium Salt Trihydrate Stable Isotopes CS-T-89960 1329834-65-2 Enquire


API

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Ethylcarbamic Acid 4-Piperidinyl Ester API CS-T-54404 70724-24-2 Enquire


Impurity

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(3-Fluoro-4-morpholin-4-ylphenyl)carbamic acid benzyl ester Impurity CS-O-31589 168828-81-7 In Stock
Cariprazine carbamic acid Impurity Impurity CS-O-59580 ---- Enquire
Darunavir Carbamic Acid Methyl Ester Impurity CS-T-82431 1526916-57-3 In Stock
N-[(1S)-2-Amino-1-methylethyl]-carbamic acid methyl ester hy... Impurity CS-O-59946 1229025-32-4 Enquire
(1,2,3,4-tetrahydro-6-isoquinolinyl)carbamic Acid 1,1-Dimeth... Impurity CS-T-43739 885273-75-6 Enquire
(1-Benzyl-pyrrolidin-3-ylmethyl)-carbamic acid tert-butyl es... Impurity CS-M-08635 155497-10-2 Enquire
(1H-Pyrrolo[2,3-b]pyridin-5-ylmethyl)-carbamic acid tert-but... Impurity CS-M-15892 900514-09-2 Enquire
(1-Methylethyl)carbamic Acid Phenyl Ester Impurity CS-T-33831 17614-10-7 Enquire
(2-Aminoethyl)-benzyl carbamic acid tert-butyl ester Impurity CS-M-07502 152193-00-5 Enquire
(2-Bromo-pyridin-4-yl)carbamic acid tert-butyl ester Impurity CS-M-08661 433711-95-6 Enquire
(2-Formyl-pyridin-3-yl)-carbamic acidtert-butyl ester Impurity CS-M-07949 116026-99-4 Enquire
(2-Hydroxymethyl-pyridin-3-yl)-carbamic acid tert-butyl este... Impurity CS-M-15826 824429-51-8 Enquire
(2-Piperazin-1-yl-ethyl)-carbamic acidtert-butyl ester Impurity CS-M-09269 140447-78-5 Enquire
(3-Bromo-4,5-dihydro-isoxazol-5-ylmethyl)-carbamic acid tert... Impurity CS-M-13605 109770-82-3 Enquire
(4-Methoxy-pyridin-2-yl)-carbamic acid tert-butyl ester Impurity CS-M-07942 551950-46-0 Enquire
(5-Bromo-pyridin-3-yl)-carbamic acid tert-butyl ester Impurity CS-M-15838 361550-43-8 Enquire
(5-Iodo-pyridin-2-yl)-carbamic acid tert-butyl ester Impurity CS-M-08663 375853-79-5 Enquire
(5-Trimethylsilanylethynyl-pyridin-2-yl)-carbamic acid tert-... Impurity CS-M-07935 470463-41-3 Enquire
(6-Hydroxyspiro[3.3]hept-2-yl)carbamic acid tert-butyl ester Impurity CS-M-53575 1000933-99-2 Enquire
(6-Methoxy-pyridin-2-yl)-carbamic acid tert-butyl ester Impurity CS-M-15835 855784-40-6 Enquire
(R)-(2-Cyano-1-methylethyl)carbamic acid, 1,1-dimethylethyl ... Impurity CS-AC-02880 170367-68-7 Enquire
(R)-(3-PYRROLIDIN-2-YL-PROPYL)-CARBAMIC ACID TERT-BUTYL ESTE... Impurity CS-EM-03137 1217838-01-1 Enquire
(R,S)-[1-(Benzyloxy)-2-oxo-3-azetidinyl]carbamic Acid Benzyl... Impurity CS-T-49002 1246814-58-3 Enquire
(S)-[1-(Benzyloxy)-2-oxo-3-azetidinyl]carbamic Acid Benzyl E... Impurity CS-T-06132 71404-99-4 Enquire
(S)-[1-[(Benzyloxy)carbamoyl]-2-hydroxyethyl]carbamic Acid B... Impurity CS-T-05952 26048-94-2 Enquire
(S)-6,7-Dihydroxy-2-oxo-3-chromancarbamic Acid tert-Butyl Es... Impurity CS-T-89249 30033-27-3 Enquire
[(1S)-1-[(Methoxymethylamino)carbonyl]butyl]carbamic Acid Be... Impurity CS-T-32540 207728-22-1 Enquire
[(1S,2S)-2-Hydroxycyclohexyl]carbamic Acid Phenylmethyl Este... Impurity CS-DC-00327 198422-64-9 Enquire
[(2S,3S)-1-Methoxy-2-methyl-4-oxo-3-azetidinyl]-carbamic Aci... Impurity CS-T-32557 83542-13-6 Enquire
[(3R)-Tetrahydro-2,6-dioxo-2H-pyran-3-yl]-carbamic Acid Phen... Impurity CS-T-61811 71869-80-2 Enquire
[(3R,4S)-4-Hydroxypyrrolidin-3-yl]carbamic acid tert-butyl e... Impurity CS-DV-00444 265108-25-6 Enquire
[[3-Hydroxy-5-(hydroxymethyl)-2-methyl-4-pyridinyl]methyl]ca... Impurity CS-T-78272 210034-86-9 Enquire
[1-(2-Benzyloxymethyl-pyrrolidine-1-carbonyl)-2-methyl-propy... Impurity CS-T-48992 1217630-30-2 Enquire
[1-(2-Chloro-pyrimidin-4-yl)-piperidin-4-yl]-carbamic Acid t... Impurity CS-T-70942 596817-49-1 Enquire
[1,1-Bis(hydroxymethyl)-3-(4-octylphenyl)propyl]carbamic aci... Impurity CS-T-07003 402616-41-5 Enquire
[2-(Methylsulfonyl)ethyl]carbamic Acid Benzyl Ester Impurity CS-T-34861 146698-94-4 Enquire
[2-[(4-Morpholinylcarbonyl)amino]ethyl]-carbamic acid, 1,1-d... Impurity CS-T-58993 215654-61-8 Enquire
[2-[[3-(2-Chlorobenzoyl)-5-ethyl-2-thienyl]amino]-2-oxoethyl... Impurity CS-T-11299 50508-73-1 Enquire
[2-[4-(Aminosulfonyl)phenyl]ethyl]carbamic Acid Ethyl Ester Impurity CS-T-48086 192118-08-4 Enquire
[4-Chloro-4-(3-pyridinyl)butyl]methylcarbamic Acid Ethyl Est... Impurity CS-T-71676 73130-52-6 Enquire
[6-[Bis(4-methoxyphenyl)phenylmethoxy]hexyl]-carbamic Acid 2... Impurity CS-T-49366 178261-44-4 Enquire
2,2-Dimethoxyethyl[(dimethoxyphosphinyl)(3-methoxyphenyl)met... Impurity CS-T-53640 344578-06-9 Enquire
3-(4-Piperidinyl)-1,2-benzisoxazole N-Carbamic Acid Phenyl E... Impurity CS-T-40120 84163-21-3 Enquire
3-Pyridinylcarbamic Acid 4-Nitrophenyl Ester Impurity CS-T-60949 56402-87-0 Enquire
4-Aminoantipyrine N-Carbamic Acid Methyl Ester Impurity CS-T-01890 10077-96-0 Enquire
Carbamic acid, [(1R)​-​2-​(acetyloxy)​-​1-​([1,​1'-​biphenyl... Impurity CS-O-40116 219718-02-2 Enquire
Carbamic acid, [(3R,4S)-3-methyl-4-piperidinyl]-, 1,1-dimeth... Impurity CS-EM-02975 473839-06-4 Enquire
Carbamic acid, N-[trans-4-(cyanomethyl)cyclohexyl]-, 1,1-dim... Impurity CS-EM-03220 1313279-47-8 Enquire
Carbamic acid,N-[(1S,2S)-2-aminocyclohexyl]-, 1,1-dimethylet... Impurity CS-DL-00820 180683-64-1 Enquire
cis-(3-fluoro-piperidin-4-yl)methyl-carbamic acid tert-butyl... Impurity CS-EM-02517 1376609-34-5 Enquire
cis-(4-hydroxy-cyclohexyl)-methyl-carbamic acid tert-butyl e... Impurity CS-EM-02804 561307-54-8 Enquire
Decyl(2-hydroxyethyl)-carbamic Acid 9H-Fluoren-9-ylmethyl Es... Impurity CS-T-51717 239088-19-8 Enquire
N-(3-Amino[1,1-biphenyl]-4-yl)-carbamic Acid tert-Butyl Este... Impurity CS-T-01993 335255-33-9 Enquire
N-[(1R)-2-(Methoxymethylamino)-2-oxo-1-(phenylmethyl)ethyl]c... Impurity CS-T-32539 115186-33-9 Enquire
N-[(1R)-3-(Dimethylamino)-3-oxo-1-[(phenylthio)methyl]propyl... Impurity CS-T-53397 870812-30-9 Enquire
N-[(1S)-1-[2-(Cyclopropylamino)-1-hydroxy-2-oxoethyl]butyl]c... Impurity CS-T-14076 402959-34-6 Enquire
N-[(1S)-2-Hydroxy-3-methyl-1-(2-methylpropyl)-3-buten-1-yl]-... Impurity CS-T-78816 1609959-45-6 Enquire
N-[(2R,3R)-2-(2,5-Difluorophenyl)tetrahydro-5-oxo-2H-pyran-3... Impurity CS-T-90018 1456616-43-5 Enquire
N-[(2S,3S)-2-(2,5-Difluorophenyl)tetrahydro-5-oxo-2H-pyran-3... Impurity CS-T-89779 1456616-44-6 Enquire
N-[(2S,3S)-2-Methyl-4-oxo-3-azetidinyl]-carbamic Acid 1,1-Di... Impurity CS-T-34651 80582-03-2 Enquire
N-[2-[(4-chlorophenyl)thio]phenyl]-carbamic Acid Phenyl Este... Impurity CS-T-72409 1544636-74-9 Enquire
N-[3-(1-Naphthalenyloxy)-1-phenylpropyl]carbamic Acid 1,1-Di... Impurity CS-T-59095 1404234-03-2 Enquire
N-[5-(Hydroxymethyl)-2-phenyl-1,3-dioxan-5-yl]-carbamic Acid... Impurity CS-T-27927 1125824-87-4 Enquire
N-Methyl-N-(methylsulfonyl)-carbamic Acid 1,1-Dimethylethyl ... Impurity CS-T-34441 894351-83-8 Enquire
rel-N-[(1R,4R)-4-(Hydroxymethyl)-2-cyclopenten-1-yl]carbamic... Impurity CS-T-78519 172720-97-7 Enquire
trans-(3-fluoro-piperidin-4-yl)methyl-carbamic acid tert-but... Impurity CS-EM-02513 1376609-36-7 Enquire
trans-(4-fluoro-3-pyrrolidinyl)-Carbamic acid, 1,1-dimethyle... Impurity CS-DV-03770 186201-09-2 Enquire
trans-(4-hydroxy-cyclohexyl)-methyl-carbamic acid tert-butyl... Impurity CS-EM-03224 400899-99-2 Enquire
trans-(4-hydroxymethyl-cyclohexyl)-carbamic acid tert-butyl ... Impurity CS-DV-03771 239074-29-4 Enquire
trans-N-(1E)-1,3-Butadien-1-yl-carbamic Acid 2,2,2-Trichloro... Impurity CS-T-49978 77627-82-8 Enquire


Intermediate

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
Regorafenib carbamic Acid Phenethyl Ester Intermediate Intermediate CS-O-48227 519028-33-2 In Stock


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(2-Ethoxy-2-oxoethyl)carbamic acid Fine Chemicals CS-O-60366 121316-33-4 Enquire
(Methyl)(2-aminobenzyl)carbamic acid tert-butyl ester Fine Chemicals CS-O-49955 868783-63-5 Enquire
((2R,3S)-2-ethoxy-5-oxo-tetrahydro-furan-3-yl)-carbamic acid... Fine Chemicals CS-O-37464 220184-67-8 Enquire
(2,6-dioxopiperidin-3-yl)carbamic acid Fine Chemicals CS-O-37053 Not Available Enquire
[(1R)-2-(Biphenyl-4-yl)-1-formylethyl]carbamic acid tert-but... Fine Chemicals CS-O-33529 149709-58-0 Enquire
1,2-Oxazino[6,5-b]indole, carbamic acid deriv. Fine Chemicals CS-O-39996 147606-23-3 Enquire
4 ( Trifluoromethyl ) phenylcarbamic acid Fine Chemicals CS-O-37196 Not Available Enquire
Carbamic acid Fine Chemicals CS-O-42677 463-77-4 Enquire
dimethyl carbamic acid Fine Chemicals CS-O-34506 7260-94-8 Enquire
Phenylcarbamic acid Fine Chemicals CS-ED-02042 501-82-6 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(3,5-Bis-trifluoromethylphenyl)carbamic acid phenyl ester Building Blocks CS-O-47943 65141-19-7 Enquire
Cyclohexylethyldithiocarbamic acid N-cyclohexylethyl ammoniu... Building Blocks CS-CD-00168 13167-44-7 Enquire
Thietan-3-yl-carbamic acid tert-butyl ester Building Blocks CS-M-53540 943437-98-7 Enquire


Carbohydrates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
carbamic acid, N-[5-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-d... Carbohydrates CS-O-55657 211688-85-6 Enquire
Carbamic acid, N-[5-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-d... Carbohydrates CS-O-55581 905440-42-8 Enquire