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About This Item
线性分子式:
CF3COOH
CAS号:
分子量:
114.02
Beilstein:
742035
MDL编号:
UNSPSC代码:
12352106
EC索引号:
200-929-3
NACRES:
NA.21
蒸汽密度
3.9 (vs air)
质量水平
蒸汽压
97.5 mmHg ( 20 °C)
检测方案
≥99.7% (acidimetric)
形式
liquid
杂质
≤0.02% Water (Karl Fischer)
折射率
n20/D 1.3 (lit.)
pH值（酸碱度）
1 (10 g/L in H2O)
bp
72.4 °C (lit.)
mp
−15.4 °C (lit.)
溶解性
soluble 10 g/mL
密度
1.489 g/mL at 20 °C (lit.)
储存温度
2-30°C
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
应用
Trifluoroacetic acid (TFA) can be used as an ion-pairing agent in a reverse-phase HPLC system to separate peptides because it enhances peak resolution. It also has low absorption detection wavelengths and is relatively volatile and can be easily removed. For the majority of peptide separations, TFA has been used at concentrations ranging from 0.05 to 0.1%(6.5-13 mM).
分析说明
Assay (acidimetric): ≥ 99.7 %
Identity (IR-spectrum): passes test
Density (d 20 °C/20 °C): about 1.53
Boiling point: about 72 °C
Water (according to Karl Fischer): ≤ 0.02 %
Identity (IR-spectrum): passes test
Density (d 20 °C/20 °C): about 1.53
Boiling point: about 72 °C
Water (according to Karl Fischer): ≤ 0.02 %
警示用语：
Danger
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
监管及禁止进口产品
Y Chen et al.
Journal of chromatography. A, 1043(1), 9-18 (2004-08-20)
Trifluoroacetic acid (TFA) remains the dominant mobile phase additive for reversed-phase high-performance liquid chromatography (RP-HPLC) of peptides after more than two decades since its introduction to this field. Generally, TFA has been employed in a concentration range of 0.05-0.1% (6.5-13
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