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2-Aminothiophene-3-carboxylic acid

Also known as: 2-Amino-3-thiophenecarboxylic acid, 3-Thiophenecarboxylic acid, 2-amino-, 2-Aminothiophene-3-carboxylic acid, 2-Aminothiophene-3-carboxylicaci, 2-aminothiophene-3-carboxylic acid - [A86982], 3-Thiophenecarboxylicacid,2-amino-(9CI)

2-Aminothiophene-3-carboxylic acid (CAS 56387-08-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5NO2S and a molecular weight of 143.164 g/mol. Key properties include a boiling point of 347.1±27.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 163.7±23.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56387-08-7
Jingsj CID
J-1084540-6
Molecular Formula
C5H5NO2S
Molecular Weight
143.164 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point347.1±27.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point163.7±23.7 °C
Exact Mass143.004105
PSA91.56000
LogP1.49
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.690

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Aminothiophene-3-carboxylic acid?

The CAS number of 2-Aminothiophene-3-carboxylic acid is 56387-08-7.

What are the molecular formula and molecular weight of 2-Aminothiophene-3-carboxylic acid?

2-Aminothiophene-3-carboxylic acid has molecular formula C5H5NO2S and molecular weight 143.164 g/mol.

What are the upstream and downstream products of 2-Aminothiophene-3-carboxylic acid?

For 2-Aminothiophene-3-carboxylic acid, Upstream Products: Ethyl 2-aminothiophene-3-carboxylate; Downstream Products: Ethyl 2-aminothiophene-3-carboxylate, diethyl 2-[(thiophen-3-ylamino)methylidene]malonate, 2-(1H-Pyrrol-1-yl)thiophene-3-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "2-Aminothiophene-3-carboxylic acid (CAS 56387-08-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084540-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.