三氟乙酸,Trifluoroacetic acid [TFA];≥99%, for protein sequencing

别名: TFA 线性分子式: CF3COOH CAS号: 76-05-1 分子量: 114.02 Beilstein: 742035 EC 号: 200-929-3 MDL编号: MFCD00004169 PubChem化学物质编号: 329753402 NACRES: NA.21
制造商品牌: 西格玛 Sigma-Aldrich
货号(SKU): 299537
CAS号: 76-05-1
MDL号: MFCD00004169
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¥890.01

说明

三氟乙酸是一种天然存在的有机溶剂,可通过微生物作用生物降解。它还可以用作各种有机转化的催化剂,包括溶剂分解、重排、还原、氧化和三氟甲基化。

一般描述

Trifluoroacetic acid is a naturally occurring organic solvent and biodegradable by microbial action. It can also be used as a catalyst for various organic transformations, including solvolysis, rearrangements, reductions, oxidations, and trifluoromethylation.
 

应用

Trifluoroacetic acid can be used as a solvent in the:
  • Mass spectrometry for protein identification.
  • Microwave-irradiated bromination of isoxazoles and pyrazoles with N-bromosuccinimide to synthesize mono-brominated isoxazoles and pyrazoles.
  • Lewis acid-catalyzed 6-endo-digcyclization of 2-(2-arylethynyl)heteroaryl esters to heterocyclic lactones.
  • Electrospinning of cellulose acetate to prepare the corresponding nanofibrous membranes.

 

属性

蒸汽密度

3.9 (vs air)

质量水平

蒸汽压

97.5 mmHg ( 20 °C)

类型

for protein sequencing

测定

≥99%

形式

liquid

杂质

<0.05% water

蒸发残留物

<0.005%

折射率

n20/D 1.3 (lit.)

pH值(酸碱度)

1 (20 °C, 10 g/L)

bp

72.4 °C (lit.)

mp

−15.4 °C (lit.)

密度

1.489 g/mL at 20 °C (lit.)

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

 

安全信息

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

商品规格
属性名称属性值
储存温度 Storage temp.常温阴凉避光
全球实时库存 Availability √美国St. Louis ≥ 20 | 欧洲Eur. ≥ 16 | 東京Tokyo ≥ 5 | 香港与北京 ≥ 20
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