1.08178
Trifluoroacetic acid
for protein sequence analysis
동의어(들):
TFA
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
CF3COOH
CAS 번호:
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 Segment
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
저장 등급
8A - Combustible corrosive hazardous materials