IUPAC INternational Chemical Identifier
- Name: IUPAC INternational Chemical Identifier
- Alternative Name: InChI
- Specification URI: https://iupac.org/who-we-are/divisions/division-details/inchi/
- Scope: Substance
- Disciplines: Life Science, Biology, Other
- Keywords: chemical substance
- Description: The IUPAC International Chemical Identifier (InChITM) is a non-proprietary identifier for chemical substances that can be used in printed and electronic data sources thus enabling easier linking of diverse data compilations.