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91707

Sigma-Aldrich

Trifluoroacetic acid

puriss. p.a., suitable for HPLC, ≥99.0% (GC)

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Synonym(s):
TFA
Linear Formula:
CF3COOH
CAS Number:
Molecular Weight:
114.02
Beilstein/REAXYS Number:
742035
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

3.9 (vs air)

vapor pressure

97.5 mmHg ( 20 °C)

grade

puriss. p.a.

assay

≥99.0% (GC)

form

liquid

technique(s)

HPLC: suitable
LC/MS: suitable

impurities

≤0.05% water

refractive index

n20/D 1.3 (lit.)

pH

1 (20 °C, 1 g/L)

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: 0.08
λ: 290 nm Amax: 0.07
λ: 300 nm Amax: 0.06
λ: 320 nm Amax: 0.05

suitability

corresponds to standard for RP gradient test

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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1 of 4

This Item
TX127630203180457
vibrant-m

91707

Trifluoroacetic acid

vibrant-m

TX1276

Trifluoroacetic acid

vibrant-m

302031

Trifluoroacetic acid

vibrant-m

80457

Trifluoroacetic acid

grade

puriss. p.a.

grade

-

grade

-

grade

-

assay

≥99.0% (GC)

assay

≥99.9%

assay

≥99.0%

assay

≥99.0% (GC)

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

density

1.489 g/mL at 20 °C (lit.)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

vapor density

3.9 (vs air)

form

liquid

form

liquid

form

liquid

form

liquid

General description

Trifluoroacetic acid (TFA) is a fluorinated acetic acid. It is widely used as trifluoromethylating reagent for trifluoromethylation of aromatic compounds.

Application

Trifluoroacetic acid (TFA) may be used in the following studies:
  • Preparation of TFA reagent for the estimation of serum vitamin A.
  • To compose the binary solvent system for the isolation of large denatured peptides by reverse phase high performance liquid chromatography.
  • A mobile-phase additive for liquid chromatography-mass spectrometry (LC-MS) analysis.
  • Preparation of artemisinin under optimized reaction conditions.

Packaging

package with 10x1mL

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pictograms

CorrosionExclamation mark

signalword

Danger

Hazard Classifications

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

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

212.0 °F - Pensky-Martens closed cup

flash_point_c

> 100 °C - Pensky-Martens closed cup


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Trifluoroacetic acid Meets Reagent Specifications for testing USP/NF monographs

Supelco

TX1275

Trifluoroacetic acid

Ammonium trifluoroacetate suitable for HPLC, 99.0-101.0% (NT)

Supelco

56865

Ammonium trifluoroacetate

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)
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
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

Protocols

Overcome challenges in synthesis and disulfide bond formation with protocols for Fmoc solid-phase peptide synthesis of peptides with cysteine and methionine.

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