4-Bromo-2-cyanothiophene

4-溴-2-氰基噻吩

Also known as: 4-Bromothiophene-2-carbonitrile, 4-Bromo-2-thiophenecarbonitrile, 2-Thiophenecarbonitrile, 4-bromo-, 3-Bromo-5-cyanothiophene

4-Bromo-2-cyanothiophene (CAS 18791-99-6) 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 188.04500 g/mol. It is also known as 4-Bromothiophene-2-carbonitrile, 4-Bromo-2-thiophenecarbonitrile and 2-Thiophenecarbonitrile, 4-bromo-. Key properties include a melting point of 47.0 to 51.0 °C and a density of 1.82g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18791-99-6
Jingsj CID
J-1156487-2
Molecular Formula
C5H2BrNS
Chinese Name
4-溴-2-氰基噻吩
Molecular Weight
188.04500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point47.0 to 51.0 °C
Density1.82g/cm3

Frequently Asked Questions

What is the CAS number of 4-Bromo-2-cyanothiophene?

The CAS number of 4-Bromo-2-cyanothiophene is 18791-99-6.

What are the molecular formula and molecular weight of 4-Bromo-2-cyanothiophene?

4-Bromo-2-cyanothiophene has molecular formula C5H2BrNS and molecular weight 188.04500 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Bromo-2-cyanothiophene (CAS 18791-99-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1156487-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.