5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride

5-(1,3-恶唑-5-基)-2-噻吩磺酰氯

Also known as: 5-(1,3-oxazol-5-yl)-2-thiophenesulfonyl chloride, 5-(1,3-oxazol-5-yl)thiophene-2-sulphonyl chloride, 5-oxazol-5-yl-thiophene-2-sulfonyl chloride, 2-thiophenesulfonyl chloride, 5-(5-oxazolyl)-, 5-(oxazol-5-yl)thiophene-2-sulfonyl chloride

5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 321309-40-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H4ClNO3S2 and a molecular weight of 249.69500 g/mol. It is also known as 5-(1,3-oxazol-5-yl)-2-thiophenesulfonyl chloride, 5-(1,3-oxazol-5-yl)thiophene-2-sulphonyl chloride and 5-oxazol-5-yl-thiophene-2-sulfonyl chloride. Key properties include a melting point of 79-80ºC, a boiling point of 414.5ºC at 760mmHg, a density of 1.591g/cm3 and a flash point of 204.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
321309-40-4
Jingsj CID
J-1362917-9
Molecular Formula
C7H4ClNO3S2
Chinese Name
5-(1,3-恶唑-5-基)-2-噻吩磺酰氯
Molecular Weight
249.69500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point79-80ºC
Boiling Point414.5ºC at 760mmHg
Density1.591g/cm3
Flash Point204.5ºC

Frequently Asked Questions

What is the CAS number of 5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride?

The CAS number of 5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride is 321309-40-4.

What are the molecular formula and molecular weight of 5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride?

5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride has molecular formula C7H4ClNO3S2 and molecular weight 249.69500 g/mol.

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

Last updated:

How to cite: Jingsj. "5-(1,3-Oxazol-5-yl)thiophene-2-sulfonyl chloride (CAS 321309-40-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1362917-9 (accessed 2026-10-25).

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