---
title: "Millimolar: research glossary | Sable Peptides"
description: "Millimolar (mM) is a unit of concentration equal to one thousandth of a mole per litre (10⁻³ mol/L). Peptide stock solutions are frequently prepared in the"
canonical: https://www.sablepeptides.co.uk/glossary/millimolar
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Millimolar

Millimolar (mM) is a unit of concentration equal to one thousandth of a mole per litre (10⁻³ mol/L). Peptide stock solutions are frequently prepared in the low millimolar range and then diluted to working concentrations. A 1 mM solution of a 1,000 g/mol peptide contains 1 mg of peptide per millilitre.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Molar_concentration)

## Related terms

-   [Peptide](/glossary/peptide)
-   [Millilitre](/glossary/millilitre)

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