1.08178
Trifluoroacetic acid
for protein sequence analysis
Synonym(s):
TFA
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About This Item
Linear Formula:
CF3COOH
CAS Number:
Molecular Weight:
114.02
UNSPSC Code:
12352106
NACRES:
NA.21
EC Index Number:
200-929-3
MDL number:
Beilstein/REAXYS Number:
742035
Assay:
≥99.7% (acidimetric)
Form:
liquid
vapor density
3.9 (vs air)
Quality Level
vapor pressure
97.5 mmHg ( 20 °C)
assay
≥99.7% (acidimetric)
form
liquid
impurities
≤0.02% Water (Karl Fischer)
refractive index
n20/D 1.3 (lit.)
pH
1 (10 g/L in H2O)
mp
−15.4 °C (lit.)
solubility
soluble 10 g/mL
density
1.489 g/mL at 20 °C (lit.)
storage temp.
2-30°C
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
Application
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).
Analysis Note
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 %
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Danger
Hazard Classifications
Acute Tox. 4 Inhalation - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1A
wgk
WGK 2
hcodes
Storage Class
8A - Combustible corrosive hazardous materials
Regulatory Information
监管及禁止进口产品
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1081780050 | 04022536101309 |