## Wikipedia - Cahn–Ingold–Prelog priority rules (en) Wikipedia - Descriptor (nl) Wikipedia - Deskriptor (Chemie) (de) Wikipedia - Discussion Projet:Chimie (fr) Wikipedia - Dyskusja:Konfiguracja absolutna (pl) relative configuration

https://doi.org/10.1351/goldbook.R05260
1. The @[email protected] of any @[email protected] @[email protected] with respect to any other stereogenic centre contained within the same molecular entity. Unlike @[email protected], relative configuration is reflection-invariant. Relative configuration, distinguishing @[email protected], may be denoted by the configurational descriptors $$R^{\text{*}}$$, $$R^{\text{*}}$$ (or l) and $$R^{\text{*}}$$, $$S^{\text{*}}$$ (or u) meaning, respectively, that the two centres have identical or opposite configurations. For molecules with more than two @[email protected] centres the prefix @[email protected]- may be used in front of the name of one @[email protected] where R and S have been used. If any centres have known @[email protected] then only $$R^{\text{*}}$$ and $$S^{\text{*}}$$ can be used for the relative configuration.