Methyl 4-amino-5-methylthiophene-3-carboxylate

4-氨基-5-甲基噻吩-3-羧酸甲酯

Also known as: 3-Thiophenecarboxylic acid, 4-amino-5-methyl-, methyl ester, 3-amino-2-methylthiophene-4-carboxylic acid methyl ester, 4-amino-5-methylthiophene-3-carboxylic acid methyl ester, Methyl 4-amino-5-methyl-3-thiophenecarboxylate, methyl 2-methyl-3-aminothiophene-4-carboxylate, methyl 3-amino-2-methyl-thiophene-4-carboxylate, methyl 4-amino-5-methylthiophen-3-carboxylate

Methyl 4-amino-5-methylthiophene-3-carboxylate (CAS 81528-48-5) 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 171.217 g/mol. It is also known as 3-Thiophenecarboxylic acid, 4-amino-5-methyl-, methyl ester, 3-amino-2-methylthiophene-4-carboxylic acid methyl ester and 4-amino-5-methylthiophene-3-carboxylic acid methyl ester. Key properties include a boiling point of 308.5±37.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 140.4±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81528-48-5
Jingsj CID
J-1077096-0
Molecular Formula
C7H9NO2S
Chinese Name
4-氨基-5-甲基噻吩-3-羧酸甲酯
Molecular Weight
171.217 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point308.5±37.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point140.4±26.5 °C

Frequently Asked Questions

What is the CAS number of Methyl 4-amino-5-methylthiophene-3-carboxylate?

The CAS number of Methyl 4-amino-5-methylthiophene-3-carboxylate is 81528-48-5.

What are the molecular formula and molecular weight of Methyl 4-amino-5-methylthiophene-3-carboxylate?

Methyl 4-amino-5-methylthiophene-3-carboxylate has molecular formula C7H9NO2S and molecular weight 171.217 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 4-amino-5-methylthiophene-3-carboxylate (CAS 81528-48-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1077096-0 (accessed 2026-10-25).

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