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3-Bromothiophene-2-carbonitrile

Also known as: 3-BROMO-2-CYANOTHIOPHENE, 3-Bromo-2-thiophenecarbonitrile, 2-Thiophenecarbonitrile, 3-bromo-, 2-cyano-3-bromothiophene, 3-bromo-2-cyano-thiophene, 3-bromo-thiophene-2-carbonitrile, 3-bromothiophen-2-carbonitrile, BUTTPARK 87\02-71, MFCD00068173

3-Bromothiophene-2-carbonitrile (CAS 18791-98-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2BrNS and a molecular weight of 188.045 g/mol. Key properties include a melting point of 47-48°C, a boiling point of 286.8±25.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 127.3±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18791-98-5
Jingsj CID
J-7612-0
Molecular Formula
C5H2BrNS
Molecular Weight
188.045 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point47-48°C
Boiling Point286.8±25.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point127.3±23.2 °C
Exact Mass186.909119
PSA52.03000
LogP1.79
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.642

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 3-Bromothiophene-2-carbonitrile?

The CAS number of 3-Bromothiophene-2-carbonitrile is 18791-98-5.

What are the molecular formula and molecular weight of 3-Bromothiophene-2-carbonitrile?

3-Bromothiophene-2-carbonitrile has molecular formula C5H2BrNS and molecular weight 188.045 g/mol.

What are the upstream and downstream products of 3-Bromothiophene-2-carbonitrile?

For 3-Bromothiophene-2-carbonitrile, Upstream Products: 2,3-Dibromothiophene, Tosyl cyanide, 2-Bromo-3-iodothiophene; Downstream Products: 3-Aminothiophene-2-carbonitrile, 3-Bromothiophene-2-carboxamide.

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

Last updated:

How to cite: Jingsj. "3-Bromothiophene-2-carbonitrile (CAS 18791-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7612-0 (accessed 2026-11-09).

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