Merck
All Photos(1)

91707

Sigma-Aldrich

三氟乙酸

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

Synonym(s):
TFA
Linear Formula:
CF3COOH
CAS Number:
Molecular Weight:
114.02
Beilstein:
742035
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.21

蒸汽密度

3.9 (vs air)

质量水平

200

蒸汽压

97.5 mmHg ( 20 °C)

等级

puriss. p.a.

测定

≥99.0% (GC)

形式

liquid

technique(s)

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)

bp

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 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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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

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象形图

CorrosionExclamation mark

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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