3,4-Dichlorothiophene

3,4-二氯噻吩

Also known as: Thiophene, 3,4-dichloro-, 3,4-dichloro-thiophene, 3,4-dichlor-thiophen

3,4-Dichlorothiophene (CAS 17249-76-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H2Cl2S and a molecular weight of 153.03000 g/mol. It is also known as Thiophene, 3,4-dichloro-, 3,4-dichloro-thiophene and 3,4-dichlor-thiophen. Key properties include a boiling point of 185ºC at 760mmHg, a density of 1.488g/cm3 and a flash point of 77.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17249-76-2
Jingsj CID
J-1496709-6
Molecular Formula
C4H2Cl2S
Chinese Name
3,4-二氯噻吩
Molecular Weight
153.03000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point185ºC at 760mmHg
Density1.488g/cm3
Flash Point77.2ºC

Frequently Asked Questions

What is the CAS number of 3,4-Dichlorothiophene?

The CAS number of 3,4-Dichlorothiophene is 17249-76-2.

What are the molecular formula and molecular weight of 3,4-Dichlorothiophene?

3,4-Dichlorothiophene has molecular formula C4H2Cl2S and molecular weight 153.03000 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-Dichlorothiophene (CAS 17249-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1496709-6 (accessed 2026-10-22).

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