Benzo[b]thiophen-2-amine

Also known as: 2-Aminobenzo[b]thiophene, benzothiophen-2-amine, 1-Benzothiophen-2-amine

Benzo[b]thiophen-2-amine (CAS 4521-30-6) 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 149.213 g/mol. Key properties include a boiling point of 313.1±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 143.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4521-30-6
Jingsj CID: J-1506597-1
Molecular Formula: C₈H₇NS
Molecular Weight: 149.213 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	313.1±15.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	143.2±20.4 °C
Exact Mass	149.029922
PSA	54.26000
LogP	2.50
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.744
Storage Conditions	2-8°C

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-2-amine?

The CAS number of Benzo[b]thiophen-2-amine is 4521-30-6.

What are the molecular formula and molecular weight of Benzo[b]thiophen-2-amine?

Benzo[b]thiophen-2-amine has molecular formula C8H7NS and molecular weight 149.213 g/mol.

What are the upstream and downstream products of Benzo[b]thiophen-2-amine?

For Benzo[b]thiophen-2-amine, Upstream Products: 1-Benzothiophene.

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-2-amine (CAS 4521-30-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506597-1 (accessed 2026-11-09).

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