5-Chloro-4-methoxythiophene-3-carbonyl chloride

5-氯-4-甲氧基噻吩-3-羰酰氯

Also known as: 5-chloro-4-methoxy-3-thiophenecarbonyl chloride, 3-Thiophenecarbonyl chloride, 5-chloro-4-methoxy-, 3-Thiophenecarbonyl chloride, 5-chloro-4-methoxy- (9CI), 5-CHLORO-4-METHOXYTHIOPHENE-3-CARBONYLCH, 5-Chloro-4-methoxythiophene-3-carbonyl-chloride

5-Chloro-4-methoxythiophene-3-carbonyl chloride (CAS 175137-49-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2O2S and a molecular weight of 211.06600 g/mol. It is also known as 5-chloro-4-methoxy-3-thiophenecarbonyl chloride, 3-Thiophenecarbonyl chloride, 5-chloro-4-methoxy- and 3-Thiophenecarbonyl chloride, 5-chloro-4-methoxy- (9CI). Key properties include a melting point of 66ºC, a boiling point of 281.7ºC at 760mmHg, a density of 1.494g/cm3 and a flash point of 124.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
175137-49-2
Jingsj CID
J-955016-6
Molecular Formula
C6H4Cl2O2S
Chinese Name
5-氯-4-甲氧基噻吩-3-羰酰氯
Molecular Weight
211.06600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point66ºC
Boiling Point281.7ºC at 760mmHg
Density1.494g/cm3
Flash Point124.2ºC

Frequently Asked Questions

What is the CAS number of 5-Chloro-4-methoxythiophene-3-carbonyl chloride?

The CAS number of 5-Chloro-4-methoxythiophene-3-carbonyl chloride is 175137-49-2.

What are the molecular formula and molecular weight of 5-Chloro-4-methoxythiophene-3-carbonyl chloride?

5-Chloro-4-methoxythiophene-3-carbonyl chloride has molecular formula C6H4Cl2O2S and molecular weight 211.06600 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Chloro-4-methoxythiophene-3-carbonyl chloride (CAS 175137-49-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-955016-6 (accessed 2026-10-22).

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