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thiophen-3-amine

Also known as: 3-aminothiophene, 3-thiophenamine, 3-thienylamine, thien-3-ylamine, thiophen-3-ylamine

thiophen-3-amine (CAS 17721-06-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H5NS and a molecular weight of 99.154 g/mol. Key properties include a boiling point of 243.6±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 101.1±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17721-06-1
Jingsj CID
J-1125161-9
Molecular Formula
C4H5NS
Molecular Weight
99.154 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point243.6±13.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point101.1±19.8 °C
Exact Mass99.014267
PSA54.26000
LogP0.61
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.630

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 thiophen-3-amine?

The CAS number of thiophen-3-amine is 17721-06-1.

What are the molecular formula and molecular weight of thiophen-3-amine?

thiophen-3-amine has molecular formula C4H5NS and molecular weight 99.154 g/mol.

What are the upstream and downstream products of thiophen-3-amine?

For thiophen-3-amine, Upstream Products: 3-Bromothiophene, Methyl 3-aminothiophene-2-carboxylate, 3-Iodothiophene; Downstream Products: 2-bromothiophen-3-amine, N-(3-Thienyl)acetamide, tert-Butyl thiophen-3-ylcarbamate.

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

Last updated:

How to cite: Jingsj. "thiophen-3-amine (CAS 17721-06-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1125161-9 (accessed 2026-11-09).

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