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4-Hydroxy-2-(trifluoromethyl)thiophene

3-羟基-5-三氟甲基噻吩

Also known as: 4-Hydroxy-2-(trifluoromethyl)thiophene, 5-(trifluoromethyl)thiophen-3-ol, 5-Trifluoromethyl-3-hydroxythiophene, 5-Trifluoromethylthiophene-3-one, 5-(trifluoromethyl)-3-thiophenol, 5-Trifluorothiophene-3-one, 3-Hydroxy-5-trifluoromethylthiophene, Thiophene-3-ol,5-(trifluoromethyl)-

4-Hydroxy-2-(trifluoromethyl)thiophene (CAS 217959-45-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3F3OS and a molecular weight of 168.13700 g/mol. It is also known as 5-(trifluoromethyl)thiophen-3-ol, 5-Trifluoromethyl-3-hydroxythiophene and 5-Trifluoromethylthiophene-3-one. Key properties include a boiling point of 74-78ºC/12mm, a density of 1.541 g/cm3 and a flash point of 42.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
217959-45-0
Jingsj CID
J-1499962-0
Molecular Formula
C5H3F3OS
Chinese Name
3-羟基-5-三氟甲基噻吩
Molecular Weight
168.13700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point74-78ºC/12mm
Density1.541 g/cm3
Flash Point42.1ºC

Frequently Asked Questions

What is the CAS number of 4-Hydroxy-2-(trifluoromethyl)thiophene?

The CAS number of 4-Hydroxy-2-(trifluoromethyl)thiophene is 217959-45-0.

What are the molecular formula and molecular weight of 4-Hydroxy-2-(trifluoromethyl)thiophene?

4-Hydroxy-2-(trifluoromethyl)thiophene has molecular formula C5H3F3OS and molecular weight 168.13700 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Hydroxy-2-(trifluoromethyl)thiophene (CAS 217959-45-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1499962-0 (accessed 2026-10-26).

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