4-methylthiophene-2-carbonyl chloride

4-甲基-2-噻吩甲酰氯

Also known as: 2-(Chlorocarbonyl)-4-methylthiophene, 4-methyl-2-thiophenecarbonyl chloride, 4-methyl-thiophene-2-carbonyl chloride, 4-methyl-thiophene-2-carboxylic acid chloride, 2-Thiophenecarbonyl chloride, 4-methyl-

4-methylthiophene-2-carbonyl chloride (CAS 32990-47-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5ClOS and a molecular weight of 160.62100 g/mol. It is also known as 2-(Chlorocarbonyl)-4-methylthiophene, 4-methyl-2-thiophenecarbonyl chloride and 4-methyl-thiophene-2-carbonyl chloride. Key properties include a boiling point of 232.9ºC at 760mmHg, a density of 1.32g/cm3 and a flash point of 94.6ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
32990-47-9
Jingsj CID
J-1508302-9
Molecular Formula
C6H5ClOS
Chinese Name
4-甲基-2-噻吩甲酰氯
Molecular Weight
160.62100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point232.9ºC at 760mmHg
Density1.32g/cm3
Flash Point94.6ºC

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-methylthiophene-2-carbonyl chloride?

The CAS number of 4-methylthiophene-2-carbonyl chloride is 32990-47-9.

What are the molecular formula and molecular weight of 4-methylthiophene-2-carbonyl chloride?

4-methylthiophene-2-carbonyl chloride has molecular formula C6H5ClOS and molecular weight 160.62100 g/mol.

Is 4-methylthiophene-2-carbonyl chloride hazardous?

4-methylthiophene-2-carbonyl chloride has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "4-methylthiophene-2-carbonyl chloride (CAS 32990-47-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1508302-9 (accessed 2026-10-22).

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