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Purity-adjusted price calculator

Powder is not all peptide. Enter the price and the purity and net peptide content a certificate of analysis states, and see the price per mg of the actual peptide next to the price per mg of powder.

HPLC purity: the share of the detected signal that is the main peptide.
The peptide’s share of the powder’s mass, if the CoA gives it. Leave empty if it does not.

How it is calculated

  • Labelled mass = vials × mg per vial.
  • Main peptide = labelled mass × purity × net peptide content, using whichever of the two figures you enter.
  • Price per mg of peptide = pack price ÷ main peptide.

Purity and content are different quantities: purity is a chromatographic share, content is a mass share. The USP’s own example, and why 99% purity does not mean 99% peptide in the vial, are inwhat a peptide CoA proves and does not. For the plain price per mg see the price per mg calculator.

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