3-(Trifluoromethyl)crotonic acid

3-(三氟甲基)丁烯酸

Also known as: 4,4,4-Trifluoro-3-methyl-2-butenoic acid, beta-Trifluoromethylcrotonic acid, 3-(Trifluoromethyl)but-2-enoic acid, 4,4,4-Trifluoro-3-methylbut-2-enoic acid, 2-Butenoic acid, 4,4,4-trifluoro-3-methyl-, 3-(Trifluoromethyl)but-2-en-1-oic acid

3-(Trifluoromethyl)crotonic acid (CAS 69056-67-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H5F3O2 and a molecular weight of 154.08700 g/mol. It is also known as 4,4,4-Trifluoro-3-methyl-2-butenoic acid, beta-Trifluoromethylcrotonic acid and 3-(Trifluoromethyl)but-2-enoic acid. Key properties include a melting point of 28-30 °C(lit.), a boiling point of 158-163 °C(lit.), a density of 1.318 g/mL at 25 °C(lit.) and a flash point of 175 °F. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
69056-67-3
Jingsj CID
J-914022-8
Molecular Formula
C5H5F3O2
Chinese Name
3-(三氟甲基)丁烯酸
Molecular Weight
154.08700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point28-30 °C(lit.)
Boiling Point158-163 °C(lit.)
Density1.318 g/mL at 25 °C(lit.)
Flash Point175 °F

Frequently Asked Questions

What is the CAS number of 3-(Trifluoromethyl)crotonic acid?

The CAS number of 3-(Trifluoromethyl)crotonic acid is 69056-67-3.

What are the molecular formula and molecular weight of 3-(Trifluoromethyl)crotonic acid?

3-(Trifluoromethyl)crotonic acid has molecular formula C5H5F3O2 and molecular weight 154.08700 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(Trifluoromethyl)crotonic acid (CAS 69056-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-914022-8 (accessed 2026-10-23).

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