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

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. 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-1444914-0
Molecular Formula
C10H9NO2S
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
Exact Mass207.03500
PSA80.56000
LogP2.85130
Vapor Pressure0mmHg at 25°C
Refractive Index1.601
Storage Conditions2-8°C

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 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.

What are the upstream and downstream products of Methyl 5-aminobenzo[b]thiophene-2-carboxylate?

For Methyl 5-aminobenzo[b]thiophene-2-carboxylate, Upstream Products: Methyl 5-nitrobenzo[b]thiophene-2-carboxylate, 2-Chloro-5-nitrobenzaldehyde; Downstream Products: 5-[(tert-butoxycarbonyl)amino]-1-benzothiophene-2-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. "Methyl 5-aminobenzo[b]thiophene-2-carboxylate (CAS 20699-85-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1444914-0 (accessed 2026-11-09).

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