Formic acid ≥99.5% for LC-MS, Pierce™

Supplier: Thermo Scientific

Synonyms: Methanoic acidAminic Acid

28905 TS-28905 28905 T85178-AD 85178
CAPI28905PK 316.45 CAD
PI28905 CAPI28905 CAPI85178 10066-304 PI85178
Formic acid ≥99.5% for LC-MS, Pierce™
Formic acid

Thermo Scientific Pierce Formic Acid is high-purity solvent supplied in bottles as a convenient, contamination-free alternative for preparing elution solvents for HPLC separations of protein and peptides.


Formic acid is a common component of reverse-phase mobile phases that provide protons for LC/MS analysis. The presence of a low concentration of formic acid in the mobile phase is also known to improve the peak shapes of the resulting separation. Unlike trifluoroacetic acid (TFA), formic acid is not an ion-pairing agent and it does not suppress MS ionization of polypeptides when used as a mobile-phase component.

Formula: HCO₂H
MW: 46.03 g/mol
Boiling Pt: 100…101 °C (1013 hPa)
Melting Pt: 8.2…8.4 °C
Density: 1.22 g/cm³ (25 °C)
Flash Pt: 48 °C
MDL Number: MFCD00003297
CAS Number: 64-18-6
UN: 1779
ADR: 8,II

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