3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride

3,4-二氯苯并[b]噻吩-2-甲酰氯

Also known as: 3,4-dichloro-1-benzothiophene-2-carbonyl chloride, 3,4-dichloro-2-benzothiophenecarbonyl chloride, 3,4-dichlorobenzothiophene-2-carbonyl chloride, Benzo[b]thiophene-2-carbonyl chloride, 3,4-dichloro-

3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride (CAS 34576-86-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H3Cl3OS and a molecular weight of 265.54400 g/mol. It is also known as 3,4-dichloro-1-benzothiophene-2-carbonyl chloride, 3,4-dichloro-2-benzothiophenecarbonyl chloride and 3,4-dichlorobenzothiophene-2-carbonyl chloride. Key properties include a boiling point of 375ºC at 760mmHg, a density of 1.625g/cm3 and a flash point of 180.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34576-86-8
Jingsj CID
J-16612-6
Molecular Formula
C9H3Cl3OS
Chinese Name
3,4-二氯苯并[b]噻吩-2-甲酰氯
Molecular Weight
265.54400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point375ºC at 760mmHg
Density1.625g/cm3
Flash Point180.6ºC

Frequently Asked Questions

What is the CAS number of 3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride?

The CAS number of 3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride is 34576-86-8.

What are the molecular formula and molecular weight of 3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride?

3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride has molecular formula C9H3Cl3OS and molecular weight 265.54400 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-dichlorobenzo[b]thiophene-2-carbonyl chloride (CAS 34576-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16612-6 (accessed 2026-10-22).

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