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3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid

CAS No.
187949-86-6
Chemical Name:
3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid
Synonyms
3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid;3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid;2-Thiophenecarboxylic acid, 3-amino-5-(4-chlorophenyl)-
CBNumber:
CB42129455
Molecular Formula:
C11H8ClNO2S
Molecular Weight:
253.7
MDL Number:
MFCD09909681
MOL File:
187949-86-6.mol
MSDS File:
SDS
Last updated:2026-05-28 02:07:43

3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid Properties

Melting point 146 °C
Boiling point 507.3±50.0 °C(Predicted)
Density 1.483
pka 3.95±0.10(Predicted)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H332-H335
Precautionary statements  P261-P280-P305+P351+P338

3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid price More Price(29)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Matrix Scientific 072326 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 187949-86-6 250.00mg $260 2026-05-18 Buy
Matrix Scientific 072326 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 187949-86-6 1.00g $559 2026-05-18 Buy
Matrix Scientific 072326 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 187949-86-6 5.00g $1428 2026-05-18 Buy
aablocks AA002GIG 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 95% 187949-86-6 250mg $71 2026-05-28 Buy
Crysdot CD11177434 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 95+% 187949-86-6 10g $248 2026-05-26 Buy
Product number Packaging Price Buy
072326 250.00mg $260 Buy
072326 1.00g $559 Buy
072326 5.00g $1428 Buy
AA002GIG 250mg $71 Buy
CD11177434 10g $248 Buy

3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid Chemical Properties, Uses, Production

Synthesis

Methyl 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylate

91076-93-6

3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid

187949-86-6

General procedure for the synthesis of 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid from methyl 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylate: a) Hydrolysis reaction: 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid methyl ester (2.00 g, 7.47 mmol) was dissolved in a mixture of 50 mL of water and 50 mL of methanol containing KOH (2.0 g, 36 mmol), and the reaction was carried out at reflux for 2 hours. Upon completion of the reaction, the methanol was removed by evaporation, and the residue was diluted with water to twice the original volume and washed with ethyl acetate. The aqueous layer was acidified with aqueous NaHSO4 to pH < 7. The precipitate precipitated was collected by filtration, washed with water and dried to give 1.85 g (98% yield) of the target product 3-amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid. The product was characterized by 1H NMR (DMSO-d6): δ 7.62 (m, 2H), 7.48 (m, 2H), 6.96 (s, 1H).

References

[1] Patent: WO2007/11284, 2007, A1. Location in patent: Page/Page column 22-23
[2] Patent: WO2007/11285, 2007, A1. Location in patent: Page/Page column 19
[3] Patent: WO2007/11286, 2007, A1. Location in patent: Page/Page column 20
[4] Patent: WO2005/66163, 2005, A2. Location in patent: Page/Page column 109
[5] European Journal of Medicinal Chemistry, 2013, vol. 65, p. 223 - 231

3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid Preparation Products And Raw materials

Global Suppliers ( 39)
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Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Nanjing Norris-Pharm Technology Co., Ltd 13901585132 sales@norris-pharm.com China 8869 55
Shanghai BeiZhuo Biotech Co., Ltd. 021-61119791,13386096464 bzswkf@foxmail.com China 3916 50
Shanghai Uchem Inc. 15618758386 15618758386 sales3@myuchem.com China 1996 55
Henan CoreyChem Co., Ltd 0371-86658258 info@coreychem.com China 10442 58
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Aikon International Limited 025-66113011 19370895928 qzhang@aikonchem.com China 15390 58
Suzhou Nuoouman Biological Technology Co., Ltd. 15026866316 180642609@qq.com China 4966 58
Zhengzhou Ruke Biological Co., Ltd. 15981811963 1410472904@qq.com China 5824 58
Hubei Xinyuanshun Pharmaceutical Chemical Co., Ltd. 027-51831887 15337167856 hubeixinyuanshun@163.com China 10272 58
3-amino-5-(4-chlorophenyl)-2-thiophenecarboxylic acid 3-Amino-5-(4-chlorophenyl)thiophene-2-carboxylic acid 2-Thiophenecarboxylic acid, 3-amino-5-(4-chlorophenyl)- 187949-86-6