Difluoroacetic acid
SUPELCO/00922 - for LC-MS LiChropur™, ≥97.5% (GC)
Synonym: DFA
CAS Number: 381-73-7
Empirical Formula (Hill Notation): C2H2F2O2
Molecular Weight: 96.03
MDL Number: MFCD00004220
Linear Formula: F2CHCO2H
Product Type: Chemical
assay | ≥97.5% (GC) |
97.5-102.5% (T) | |
bp | 132-134 °C (lit.) |
cation traces | Al: ≤5 ppm |
Ca: ≤20 ppm | |
Cu: ≤5 ppm | |
Fe: ≤2 ppm | |
K: ≤50 ppm | |
Mg: ≤5 ppm | |
Na: ≤50 ppm | |
density | 1.526 g/mL at 25 °C (lit.) |
InChI | 1S/C2H2F2O2/c3-1(4)2(5)6/ |
InChI key | PBWZKZYHONABLN-UHFFFAOYSA |
mp | −1 °C (lit.) |
refractive index | n |
SMILES string | OC(=O)C(F)F |
suitability | passes test for LC-MS |
technique(s) | LC/MS: suitable |
General description: | Compared to trifluoroacetic acid (TFA), difluoroacetic acid (DFA) exhibits an improved sensitivity in mass spectral detection (ESI) as it has a reduced effect on ion suppression in reversed-phase liquid chromatography (RPLC-MS), while keeping its strong chromatographic performance enhancing effects. |
Legal Information: | LiChropur is a trademark of Merck KGaA, Darmstadt, Germany |
Recommended products: | Discover LiChropur™ reagents ideal for HPLC or LC-MS analysis |
Symbol | GHS05 |
Signal word | Danger |
Hazard statements | H314 |
Precautionary statements | P280 - P301 + P330 + P331 - P303 + P361 + P353 - P305 + P351 + P338 |
WGK Germany | WGK 3 |
Flash Point(F) | 172.4 °F - closed cup |
Flash Point(C) | 78 °C - closed cup |
Purity | ≥97.5% (GC); 97.5-102.5% (T) |
bp | 132-134 °C (lit.) |
mp | −1 °C (lit.) |
Density | 1.526 g/mL at 25 °C (lit.) |
Refractive Index | n |
UNSPSC | 41116004 |