91707
三氟乙酸
puriss. p.a., suitable for HPLC, ≥99.0% (GC)
别名:
TFA
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关于此项目
线性分子式:
CF3COOH
化学文摘社编号:
分子量:
114.02
UNSPSC Code:
12352106
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-929-3
Beilstein/REAXYS Number:
742035
MDL number:
Assay:
≥99.0% (GC)
Form:
liquid
InChI
1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)
InChI key
DTQVDTLACAAQTR-UHFFFAOYSA-N
SMILES string
OC(C(F)(F)F)=O
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)
Quality Level
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
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General description
三氟乙酸（TFA）是一种氟化乙酸。它被广泛用作三氟甲基化试剂，用于芳族化合物的三氟甲基化。
Application
三氟乙酸（TFA）可用于以下研究：
- 制备用于估算血清维生素A的TFA试剂。
- 组成二元溶剂系统，用于通过反相高效液相色谱法分离大型变性多肽。
- 用作液相色谱-质谱（LC-MS）分析的流动相添加剂。
- 用于在优化的反应条件下制备青蒿素。
Packaging
采用10x1mL包装
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
存储类别
8A - Combustible corrosive hazardous materials
wgk
WGK 2
法规信息
危险化学品
此项目有
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)
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
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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