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Methyl 5-aminobenzo[b]thiophene-2-carboxylate

5-氨基苯并噻吩-2-羧酸甲酯

Also known as: Methyl 5-amino-1-benzothiophene-2-carboxylate, 5-Aminothionaphthene-2-carboxylic acid methyl ester, 5-Amino-benzo[b]thiophene-2-carboxylic acid methyl ester, Benzo[b]thiophene-2-carboxylic acid, 5-amino-, methyl ester, 5-Amino-1-benzothiophene-2-carboxylic acid methyl ester

Methyl 5-aminobenzo[b]thiophene-2-carboxylate (CAS 20699-85-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO2S and a molecular weight of 207.24900 g/mol. It is also known as Methyl 5-amino-1-benzothiophene-2-carboxylate, 5-Aminothionaphthene-2-carboxylic acid methyl ester and 5-Amino-benzo[b]thiophene-2-carboxylic acid methyl ester. Key properties include a melting point of 178-179ºC, a boiling point of 376.763ºC at 760 mmHg, a density of 1.677g/cm3 and a flash point of 181.66ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20699-85-8
Jingsj CID
J-1444914-7
Molecular Formula
C10H9NO2S
Chinese Name
5-氨基苯并噻吩-2-羧酸甲酯
Molecular Weight
207.24900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point178-179ºC
Boiling Point376.763ºC at 760 mmHg
Density1.677g/cm3
Flash Point181.66ºC

Frequently Asked Questions

What is the CAS number of Methyl 5-aminobenzo[b]thiophene-2-carboxylate?

The CAS number of Methyl 5-aminobenzo[b]thiophene-2-carboxylate is 20699-85-8.

What are the molecular formula and molecular weight of Methyl 5-aminobenzo[b]thiophene-2-carboxylate?

Methyl 5-aminobenzo[b]thiophene-2-carboxylate has molecular formula C10H9NO2S and molecular weight 207.24900 g/mol.

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

Last updated:

How to cite: Jingsj. "Methyl 5-aminobenzo[b]thiophene-2-carboxylate (CAS 20699-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1444914-7 (accessed 2026-10-22).

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