Thermo Scientific™ Pierce™ Formic Acid

A high-purity solvent supplied in glass ampules as a convenient, contamination-free alternative for preparing elution solvents for HPLC separations of protein and peptides.

Brand: Thermo Scientific™

Manufacturer Part Number: 85178

50mL Formic acid, LC-MS grade

UNSPSC: 41116105

Code: PN

Additional Details:
Additional Details: CAS Number: 64-18-6 Weight: 0.18000kg Transport: UN number : 1779 Chem class : 1a Pack group : II

Product Code. 13454279

Quantity Price
1 £119.00 / 50mL
EU Stock 22
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Description and Specification


For Use With LC/MS
Quantity 50mL
Standard Components Formic acid
Standard Concentration 98 to 100%
Formulation Clear, colorless liquid of formic acid (at least 99% pure)
Item Name Pierce Formic Acid
Storage 4°C

Formic acid is a component found in reverse-phase mobile phases to 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 reagent, and it does not suppress MS ionization of polypeptides when used as a mobile phase component.


  • Prescored, nitrogen-flushed, amber glass to protect formic acid from light and moisture
  • 99% purity for consistent LC baselines and no interference introduced into LC and mass spectrometry applications
  • Convenient format simplifies preparation of gradient and isocratic mobile phases containing 0.1% (v/v) formic acid in water or acetonitrile
  • Contents of a single vial in a final volume of 1L solvent yields a mobile phase of the most common formic acid concentration

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