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Merck
CN

91703

Sigma-Aldrich

Trifluoroacetic acid

suitable for UV/Vis spectroscopy, ≥99.0% (GC)

Synonym(s):

TFA

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About This Item

Linear Formula:
CF3COOH
CAS Number:
76-05-1
Molecular Weight:
114.02
Beilstein:
742035
EC Number:
200-929-3
MDL number:
MFCD00004169
UNSPSC Code:
12352106

Key Documents

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vapor density

3.9 (vs air)

vapor pressure

97.5 mmHg ( 20 °C)

Assay

≥99.0% (GC)

technique(s)

UV/Vis spectroscopy: suitable

impurities

≤0.05% water

refractive index

n20/D 1.3 (lit.)

bp

72.4 °C (lit.)

mp

−15.4 °C (lit.)

solubility

water: soluble

density

1.489 g/mL at 20 °C (lit.)

λ

1 cm path, H2O reference

UV absorption

λ: 260 nm Amax: 0.9
λ: 270 nm Amax: 0.1
λ: 280 nm Amax: 0.05
λ: 290 nm Amax: 0.04
λ: 300 nm Amax: 0.03
λ: 320 nm Amax: 0.025

SMILES string

OC(C(F)(F)F)=O

InChI

1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI key

DTQVDTLACAAQTR-UHFFFAOYSA-N

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Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H332,H412

Hazard Classifications

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 2

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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Continuous-flow synthesis of the anti-malaria drug artemisinin.
François Lévesque et al.
Angewandte Chemie (International ed. in English), 51(7), 1706-1709 (2012-01-18)
W C Mahoney et al.
The Journal of biological chemistry, 255(23), 11199-11203 (1980-12-10)
A method employing reverse phase high performance liquid chromatography has been developed for the purification of large denatured peptides. The cyanogen bromide fragments of hemoglobin alpha, beta, and gamma chains (13 to 91 residues in length) could be separated and
Macro- and micromethods for the determination of serum vitamin A using trifluoroacetic acid.
J B Neeld et al.
The Journal of nutrition, 79, 454-462 (1963-04-01)
Guangfa Shi et al.
Organic letters, 17(1), 38-41 (2014-12-18)
Direct trifluoromethylation of arenes using TFA as the trifluoromethylating reagent was achieved with Ag as the catalyst. This reaction not only provides a new protocol for aryl C-H trifluoromethylation, but the generation of CF3· from TFA may prove useful in
Risto Kostiainen et al.
Journal of chromatography. A, 1216(4), 685-699 (2008-09-19)
The most widely used ionization techniques in liquid chromatography-mass spectrometry (LC-MS) are electrospray ionization (ESI), atmospheric pressure chemical ionization (APCI) and atmospheric pressure photoionization (APPI). All three provide user friendly coupling of LC to MS. Achieving optimal LC-MS conditions is
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