Trifluoroacetic acid

C2HF3O2CAS 76-05-1114.02 g/mol

OHOFFF
Alkyl halideCarboxylic acid

Properties

Molecular formula
C2HF3O2
Molar mass
114.02 g/mol
Exact mass
113.9929 Da
Density
1.489 g/mL (at 20 °C)
Melting point
−15.2 °C
Boiling point
73 °C
pKa
0.3
Water solubility
miscible (20 °C)
logP
0.63Crippen estimate
Polar surface area
37.3 Ų
H-bond donors / acceptors
1 / 1
Rotatable bonds
0

Hazards

Danger
Corrosive (GHS05)Irritant (GHS07)

Harmonised EU classification (CLP Annex VI, index 607-091-00-1), via PubChem.

Precautionary statements

P260, P261, P264, P271, P273, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P321, P363, P405, P501

Identifiers

CAS number
76-05-1
SMILES
O=C(O)C(F)(F)F
InChIKey
DTQVDTLACAAQTR-UHFFFAOYSA-N
InChI
InChI=1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)

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Names and synonyms

7 names
  • Acetic acid, 2,2,2-trifluoro-
  • Acetic acid, trifluoro-
  • 2,2,2-Trifluoroacetic acid
  • Perfluoroacetic acid
  • Trifluoroethanoic acid
  • TFA
  • NSC 77366

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 76-05-1. Each row opens the sheet with its composition and PDF.

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Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

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