2-Amino-4,5-dimethylthiophene-3-carboxylic acid

4,5-二甲基-2-氨基噻吩-3-甲酸

Also known as: 2-Amino-4,5-dimethyl-3-thiophenecarboxylic acid, 2-Amino-4,5-dimethylthiophene-3-carboxylic acid (SALTDATA: FREE), 3-Carboxy-4,5-dimethylthiophen-2-amine, 2-Amino-3-carboxy-4,5-dimethylthiophene, 3-Thiophenecarboxylic acid, 2-amino-4,5-dimethyl-, AKOS MSC-0442, BUTTPARK 114\40-57

2-Amino-4,5-dimethylthiophene-3-carboxylic acid (CAS 55502-96-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9NO2S and a molecular weight of 171.21700 g/mol. It is also known as 2-Amino-4,5-dimethyl-3-thiophenecarboxylic acid, 2-Amino-4,5-dimethylthiophene-3-carboxylic acid (SALTDATA: FREE) and 3-Carboxy-4,5-dimethylthiophen-2-amine. Key properties include a boiling point of 337.9ºC at 760 mmHg, a density of 1.355g/cm3 and a flash point of 158.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55502-96-0
Jingsj CID
J-1403809-5
Molecular Formula
C7H9NO2S
Chinese Name
4,5-二甲基-2-氨基噻吩-3-甲酸
Molecular Weight
171.21700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point337.9ºC at 760 mmHg
Density1.355g/cm3
Flash Point158.1ºC

Frequently Asked Questions

What is the CAS number of 2-Amino-4,5-dimethylthiophene-3-carboxylic acid?

The CAS number of 2-Amino-4,5-dimethylthiophene-3-carboxylic acid is 55502-96-0.

What are the molecular formula and molecular weight of 2-Amino-4,5-dimethylthiophene-3-carboxylic acid?

2-Amino-4,5-dimethylthiophene-3-carboxylic acid has molecular formula C7H9NO2S and molecular weight 171.21700 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-Amino-4,5-dimethylthiophene-3-carboxylic acid (CAS 55502-96-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1403809-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.