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2-(Trifluoromethyl)acrylic acid

Also known as: 2-(Trifluoromethyl)propenoic acid, 2-(trifluoromethyl)prop-2-enoic acid, 2-Propenoic acid, 2-(trifluoromethyl)-, TRIFLUOROMETHYLACRYLIC ACID, MFCD00042424

2-(Trifluoromethyl)acrylic acid (CAS 381-98-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H3F3O2 and a molecular weight of 140.061 g/mol. Key properties include a melting point of 51-52 °C(lit.), a boiling point of 192.6±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 81.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
381-98-6
Jingsj CID
J-19550-6
Molecular Formula
C4H3F3O2
Molecular Weight
140.061 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point51-52 °C(lit.)
Boiling Point192.6±40.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point81.7±0.0 °C
Exact Mass140.008514
PSA37.30000
LogP2.14
Vapor Pressure0.2±0.8 mmHg at 25°C
Refractive Index1.360

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2916190090
Summary2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-(Trifluoromethyl)acrylic acid?

The CAS number of 2-(Trifluoromethyl)acrylic acid is 381-98-6.

What are the molecular formula and molecular weight of 2-(Trifluoromethyl)acrylic acid?

2-(Trifluoromethyl)acrylic acid has molecular formula C4H3F3O2 and molecular weight 140.061 g/mol.

Is 2-(Trifluoromethyl)acrylic acid hazardous?

2-(Trifluoromethyl)acrylic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2-(Trifluoromethyl)acrylic acid?

For 2-(Trifluoromethyl)acrylic acid, Upstream Products: 2-bromo-3,3,3-trifluoropropene, 3-Hydroxy-2-(trifluoromethyl)propanoic acid, Carbon dioxide; Downstream Products: methyl 2-(trifluoromethyl)acrylate, 3-Hydroxy-2-(trifluoromethyl)propanoic acid, 1-Benzyl-3-(trifluoromethyl)pyrrolidine-3-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "2-(Trifluoromethyl)acrylic acid (CAS 381-98-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19550-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.