5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride

5-[5-(三氟甲基)异噁唑-3-基]噻吩-2-磺酰氯

Also known as: 5-[5-(trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride, 5-[5-(Trifluoromethyl)-1,2-oxazol-3-yl]thiophene-2-sulfonyl chloride, 5-[5-(trifluoromethyl)-1,2-oxazol-3-yl]thiophene-2-sulphonyl chloride, 3-[5-(Chlorosulphonyl)thien-2-yl]-5-(trifluoromethyl)isoxazole, 2-(Chlorosulphonyl)-5-[5-(trifluoromethyl)-1,2-oxazol-3-yl]thiophene, MFCD00831001

5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride (CAS 229956-98-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H3ClF3NO3S2 and a molecular weight of 317.69300 g/mol. It is also known as 5-[5-(trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride, 5-[5-(Trifluoromethyl)-1,2-oxazol-3-yl]thiophene-2-sulfonyl chloride and 5-[5-(trifluoromethyl)-1,2-oxazol-3-yl]thiophene-2-sulphonyl chloride. Key properties include a melting point of 108-111ºC, a boiling point of 425.1ºC at 760mmHg, a density of 1.668g/cm3 and a flash point of 210.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
229956-98-3
Jingsj CID
J-1359786-9
Molecular Formula
C8H3ClF3NO3S2
Chinese Name
5-[5-(三氟甲基)异噁唑-3-基]噻吩-2-磺酰氯
Molecular Weight
317.69300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point108-111ºC
Boiling Point425.1ºC at 760mmHg
Density1.668g/cm3
Flash Point210.9ºC

Frequently Asked Questions

What is the CAS number of 5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride?

The CAS number of 5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride is 229956-98-3.

What are the molecular formula and molecular weight of 5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride?

5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride has molecular formula C8H3ClF3NO3S2 and molecular weight 317.69300 g/mol.

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

Last updated:

How to cite: Jingsj. "5-[5-(Trifluoromethyl)isoxazol-3-yl]thiophene-2-sulfonyl chloride (CAS 229956-98-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1359786-9 (accessed 2026-10-24).

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