---
title: "Gross weight: research glossary | Sable Peptides"
description: "Gross weight is the total mass of the material in a peptide vial, including the peptide itself plus counter-ions, residual moisture and any other non-pepti"
canonical: https://www.sablepeptides.co.uk/glossary/gross-weight
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Gross weight

Gross weight is the total mass of the material in a peptide vial, including the peptide itself plus counter-ions, residual moisture and any other non-peptide components. Vial labels typically state gross weight. To calculate how many moles of peptide are present, researchers can multiply gross weight by the net peptide content reported on the certificate of analysis.

Source: [altabioscience.com](https://altabioscience.com/articles/net-peptide-content-determination-using-amino-acid-analysis/)

## Related terms

-   [Peptide](/glossary/peptide)
-   [Net peptide content](/glossary/net-peptide-content)
-   [Certificate of analysis](/glossary/certificate-of-analysis)

[Back to glossary A–Z](/glossary/terms)

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