Term: optical purity
https://doi.org/10.1351/goldbook.O04310

Definition:
The ratio of the observed optical rotation of a sample consisting of a mixture of enantiomers to the optical rotation of one pure enantiomer.

Related Terms:
1) optical rotation (http://doi.org/10.1351/goldbook.O04312).
2) enantiomer (http://doi.org/10.1351/goldbook.E02069).
3) enantiomeric excess (http://doi.org/10.1351/goldbook.E02070).

Source: PAC, 1996, 68, 2193. 'Basic terminology of stereochemistry (IUPAC Recommendations 1996)' on page 2212 (https://doi.org/10.1351/pac199668122193)

Citation: 'optical purity' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.O04310

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