Benzo[b]thiophen-3-amine

Also known as: 1-benzothiophen-3-amine, 3-aminobenzothiophene, Benzo[b]thiophen-3-ylamine, BEN790

Benzo[b]thiophen-3-amine (CAS 17402-82-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H7NS and a molecular weight of 149.21300 g/mol. Key properties include a boiling point of 313.1ºC at 760 mmHg, a density of 1.294g/cm3 and a flash point of 143.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 17402-82-3
Jingsj CID: J-1502993-3
Molecular Formula: C₈H₇NS
Molecular Weight: 149.21300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	313.1ºC at 760 mmHg
Density	1.294g/cm3
Flash Point	143.2ºC
Exact Mass	149.03000
PSA	54.26000
LogP	3.06470
Vapor Pressure	0.000506mmHg at 25°C
Refractive Index	1.744

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 Benzo[b]thiophen-3-amine?

The CAS number of Benzo[b]thiophen-3-amine is 17402-82-3.

What are the molecular formula and molecular weight of Benzo[b]thiophen-3-amine?

Benzo[b]thiophen-3-amine has molecular formula C8H7NS and molecular weight 149.21300 g/mol.

What are the upstream and downstream products of Benzo[b]thiophen-3-amine?

For Benzo[b]thiophen-3-amine, Upstream Products: Piperazine, Methyl 3-aminobenzo[b]thiophene-2-carboxylate, 1-Methylpiperazine; Downstream Products: Benzo[b]thiophen-3-ol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Benzo[b]thiophen-3-amine (CAS 17402-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502993-3 (accessed 2026-11-09).

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