Cal. Health and Safety Code § 11033 : California Health And Safety Code — Uniform Controlled Substances Act — General Provisions And Definitions — "Isomer" defined Date: 15 Sep 2016 TEXT PDF Current through the 2016 Legislative Session As used in this division, except as otherwise defined, the term "isomer" includes optical and geometrical (diastereomeric) isomers. Ca. Health and Saf. Code § 11033