3,3,3-Trifluoro-2,2-dimethylpropanoic acid

3,3,3-三氟-2,2-二甲基丙酸

Also known as: 3,3,3-Trifluoro-2,2-dimethylpropionic acid, 2,2-Dimethyl-3,3,3-trifluoropropanoic acid, 2-(Trifluoromethyl)-2-methylpropanoic acid (deprecated), 2-Trifluoromethylisobutyric acid (deprecated)

3,3,3-Trifluoro-2,2-dimethylpropanoic acid (CAS 889940-13-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H7F3O2 and a molecular weight of 156.103 g/mol. It is also known as 3,3,3-Trifluoro-2,2-dimethylpropionic acid, 2,2-Dimethyl-3,3,3-trifluoropropanoic acid and 2-(Trifluoromethyl)-2-methylpropanoic acid (deprecated). Key properties include a melting point of 66-71ºC, a boiling point of 153.4±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 46.6±25.9 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
889940-13-0
Jingsj CID
J-3597-4
Molecular Formula
C5H7F3O2
Chinese Name
3,3,3-三氟-2,2-二甲基丙酸
Molecular Weight
156.103 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point66-71ºC
Boiling Point153.4±35.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point46.6±25.9 °C
Exact Mass156.039810
PSA37.30000
LogP1.71
Vapor Pressure1.8±0.6 mmHg at 25°C
Refractive Index1.364

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,3,3-Trifluoro-2,2-dimethylpropanoic acid?

The CAS number of 3,3,3-Trifluoro-2,2-dimethylpropanoic acid is 889940-13-0.

What are the molecular formula and molecular weight of 3,3,3-Trifluoro-2,2-dimethylpropanoic acid?

3,3,3-Trifluoro-2,2-dimethylpropanoic acid has molecular formula C5H7F3O2 and molecular weight 156.103 g/mol.

Is 3,3,3-Trifluoro-2,2-dimethylpropanoic acid hazardous?

3,3,3-Trifluoro-2,2-dimethylpropanoic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3,3,3-Trifluoro-2,2-dimethylpropanoic acid?

For 3,3,3-Trifluoro-2,2-dimethylpropanoic acid, Upstream Products: 1-Methoxy-4-(2,2,2-trifluoro-1,1-dimethylethyl)benzene; Downstream Products: Methyl 3,3,3-trifluoro-2,2-dimethylpropanoate, Alpelisib (BYL719).

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

Last updated:

How to cite: Jingsj. "3,3,3-Trifluoro-2,2-dimethylpropanoic acid (CAS 889940-13-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3597-4 (accessed 2026-10-28).

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