Tools

Free calculators for routine peptide lab work. Everything runs in your browser; nothing you type is sent anywhere.

• Peptide sequence analyzer

  Paste a sequence to get molecular formula, average and monoisotopic mass, expected MS ions, isoelectric point, net charge, hydropathy, extinction coefficient and stability flags.

• Peptide reconstitution calculator

  Enter the peptide in the vial and the solvent you add to get the concentration, plus the volume to pipette for the amount your assay needs.

• COA checker

  Check a certificate of analysis: does the reported mass match the compound, is the purity plausible, and is the paperwork complete?