跳轉至內容
Merck
全部照片(4)

重要文件

查看所有文件

T6508

Sigma-Aldrich

三氟乙酸

ReagentPlus®, 99%

同義詞:

TFA

登入查看組織和合約定價
全部照片(4)

About This Item

線性公式:
CF3COOH
CAS號碼:
76-05-1
分子量：:
114.02
Beilstein:
742035
EC號碼:
200-929-3
MDL號碼:
MFCD00004169
分類程式碼代碼:
12352106
PubChem物質ID:
329826846
NACRES:
NA.21

蒸汽密度

3.9 (vs air)

品質等級

200

蒸汽壓力

97.5 mmHg ( 20 °C)

產品線

ReagentPlus®

化驗

99%

形狀

liquid

雜質

≤0.05% water

折射率

n20/D 1.3 (lit.)

pH值

1 (10 g/L)

bp

72.4 °C (lit.)

mp

−15.4 °C (lit.)

溶解度

ethanol: soluble 0.33 mL/mL

密度

1.489 g/mL at 20 °C (lit.)

SMILES 字串

OC(C(F)(F)F)=O

InChI

1S/C2HF3O2/c3-2(4,5)1(6)7/h(H,6,7)

InChI 密鑰

DTQVDTLACAAQTR-UHFFFAOYSA-N

尋找類似的產品？ 前往 產品比較指南

相關類別

一般說明

三氟乙酸（TFA）是一种有机氟化合物，在有机合成中用作各种酸催化反应的试剂，如环氧化合物开环、仿生环化、Cope 重排和天然产物合成。由于 TFA 的高挥发性、在有机溶剂中的溶解度和酸性强度，其物理化学特性比其他酸更有优势。当 TFA 用作试剂时，由于极高的挥发性，可以轻松通过蒸发分离产物。挥发性较低的酸，如硫酸或对甲苯磺酸，可能需要中和或萃取处理。

應用

三氟乙酸可用作以下反应的试剂：      
  • 用于裂解氮氧保护基团，如 N-、N-苄基氧甲基、苯醚、对甲氧基苯醚、对丁基醚、对丁基氧甲基醚、三苯基甲基醚和二甲基缩醛。      
  • 在 Baeyer-Villiger 氧化反应中与过碳酸钠结合。，
  • 芳烃的 C-H 三氟甲基化。

TFA 还可以用作：      
  • 原子转移环化反应和聚合物过程中的溶剂。      
  • 催化剂，在非质子溶剂中通过环己酮肟贝克曼重排法合成 ε-己内酰胺。

包裝

每支安瓶中1 mL。

法律資訊

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

象形圖

CorrosionExclamation mark
GHS05,GHS07

訊號詞

Danger

危險聲明

H314,H332,H412

危險分類

Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A

儲存類別代碼

8A - Combustible corrosive hazardous materials

水污染物質分類（WGK）

WGK 2

分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號，寫有 ‘Lot’或‘Batch’.。

已經擁有該產品？

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

客戶也查看了

Slide 1 of 2

1 of 2

三乙基硅烷 99%

Sigma-Aldrich

230197

三乙基硅烷

三异丙基硅烷 98%

Sigma-Aldrich

233781

三异丙基硅烷

Organocatalyzed Beckmann rearrangement of cyclohexanone oxime by trifluoroacetic acid in aprotic solvent
Ronchin L, et al.
Catalysis Communications, 10(2), 251-256 (2008)
Guillaume Plourde et al.
Lancet (London, England), 386(10009), 2192-2203 (2015-09-29)
Transradial access for cardiac catheterisation results in lower bleeding and vascular complications than the traditional transfemoral access route. However, the increased radiation exposure potentially associated with transradial access is a possible drawback of this method. Whether transradial access is associated
Yukiko Enomoto-Rogers et al.
Carbohydrate polymers, 92(2), 1827-1834 (2013-02-13)
Fully substituted glucomannan triacetate (GMTAc) (degree of substitution (DS)=3.0) was prepared from konjac glucomannan (KGM) treated with acetic acid and trifluoroacetic anhydride (TFAA). The peaks in the (1)H- and (13)C NMR spectra of GMTAc were assigned in detail based on
Caroline Le Maréchal et al.
Veterinary research, 42, 35-35 (2011-02-18)
Staphylococcus aureus is a major cause of mastitis in ruminants. In ewe mastitis, symptoms range from subclinical to gangrenous mastitis. S. aureus factors or host-factors contributing to the different outcomes are not completely elucidated. In this study, experimental mastitis was
Mian Qi et al.
Journal of the American Chemical Society, 136(43), 15366-15378 (2014-10-18)
Distance measurement in the nanometer range by electron paramagnetic resonance spectroscopy (EPR) in combination with site-directed spin labeling is a very powerful tool to monitor the structure and dynamics of biomacromolecules in their natural environment. However, in-cell application is hampered
查看所有相關論文

相關內容

Fmoc Resin Cleavage and Deprotection

Fmoc resin cleavage and deprotection follows the difficult task of detaching the peptide from the resin support and removing all the side-chain protecting groups of the amino acid residues to yield the desired peptide.

Fmoc Resin Cleavage and Deprotection

Fmoc resin cleavage and deprotection follows the difficult task of detaching the peptide from the resin support and removing all the side-chain protecting groups of the amino acid residues to yield the desired peptide.

我們的科學家團隊在所有研究領域都有豐富的經驗，包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務