This document specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage and safety of 1-(4-chlorophenyl)-4,4-dimethyl-3-pentanone. This document is applicable to the product quality control standards for 1-(4-chlorophenyl)-4,4-dimethyl-3-pentanone obtained by hydrogenation after condensation of pinacolone and p-chlorobenzaldehyde. This product is a pesticide intermediate and is mainly used in the production of the pesticide tebuconazole.