91707
三氟乙酸
puriss. p.a., suitable for HPLC, ≥99.0% (GC)
别名:
TFA
蒸汽密度
3.9 (vs air)
质量水平
蒸汽压
97.5 mmHg ( 20 °C)
等级
puriss. p.a.
方案
≥99.0% (GC)
表单
liquid
技术
HPLC: suitable
LC/MS: suitable
杂质
≤0.05% water
折射率
n20/D 1.3 (lit.)
pH值（酸碱度）
1 (20 °C, 1 g/L)
沸点
72.4 °C (lit.)
mp
−15.4 °C (lit.)
溶解性
water: soluble
密度
1.489 g/mL at 20 °C (lit.)
λ
1 cm path, H2O reference
紫外吸收
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
适用性
corresponds to standard for RP gradient test
SMILES字符串
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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相关类别
一般描述
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。
应用
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。
包装
采用10x1mL包装
警示用语：
Danger
危险声明
危险分类
Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
储存分类代码
8A - Combustible corrosive hazardous materials
WGK
WGK 2
闪点(°F)
>212.0 °F - Pensky-Martens closed cup
闪点(°C)
> 100 °C - Pensky-Martens closed cup
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)
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
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
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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