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Key Documents

299537

Sigma-Aldrich

Trifluoroacetic acid

≥99%, for protein sequencing

Synonym(s):

TFA

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About This Item

Linear Formula:
CF3COOH
CAS Number:
Molecular Weight:
114.02
Beilstein:
742035
EC Number:
MDL number:
UNSPSC Code:
12352106
PubChem Substance ID:
NACRES:
NA.21

vapor density

3.9 (vs air)

Quality Level

vapor pressure

97.5 mmHg ( 20 °C)

type

for protein sequencing

Assay

≥99%

form

liquid

impurities

<0.05% water

evapn. residue

<0.005%

refractive index

n20/D 1.3 (lit.)

pH

1 (20 °C, 10 g/L)

bp

72.4 °C (lit.)

mp

−15.4 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

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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General description

Trifluoroacetic acid is a naturally occurring organic solvent and biodegradable by microbial action. It can also be used as a catalyst for various organic transformations, including solvolysis, rearrangements, reductions, oxidations, and trifluoromethylation.

Application

Trifluoroacetic acid can be used as a solvent in the:
  • Mass spectrometry for protein identification.
  • Microwave-irradiated bromination of isoxazoles and pyrazoles with N-bromosuccinimide to synthesize mono-brominated isoxazoles and pyrazoles.
  • Lewis acid-catalyzed 6-endo-digcyclization of 2-(2-arylethynyl)heteroaryl esters to heterocyclic lactones.
  • Electrospinning of cellulose acetate to prepare the corresponding nanofibrous membranes.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

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

Flash Point(F)

No data available

Flash Point(C)

No data available


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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