1.08178

三氟乙酸

for protein sequence analysis

• 别名: TFA
• 线性分子式: CF₃COOH
• CAS号: 76-05-1
• 分子量: 114.02
• Beilstein: 742035
• MDL號碼: MFCD00004169
• 分類程式碼代碼: 12352106
• 酶委員會索引編號: 200-929-3
• NACRES: NA.21

属性

• 蒸汽密度: 3.9 (vs air)
• 品質等級: 200
• 蒸汽壓力: 97.5 mmHg ( 20 °C)
• 化驗: ≥99.7% (acidimetric)
• 形狀: liquid
• 雜質: ≤0.02% Water (Karl Fischer)
• 折射率: n20/D 1.3 (lit.)
• pH值: 1 (10 g/L in H₂O)
• bp: 72.4 °C (lit.)
• mp: −15.4 °C (lit.)
• 溶解度: soluble 10 g/mL
• 密度: 1.489 g/mL at 20 °C (lit.)
• 儲存溫度: 2-30°C
• 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

说明

應用

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).

分析報告

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 %

安全信息

• 象形圖: GHS05,GHS07
• 訊號詞: Danger
• 危險聲明: H314 - H332 - H412
• 防範說明: P261 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 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
• 閃點（°F）: 212.0 °F - Pensky-Martens closed cup
• 閃點（°C）: > 100 °C - Pensky-Martens closed cup