2-Cyclohexen-1-one, 2-hydroxy-3,5,5-trimethyl- 2-Hydroxy-3,5,5-trimethyl-2-cyclohexenone 2-Hydroxyisophorone 3,5,5-Trimethyl-1,2-cyclohexanedione 4883-60-7 FEMA No. 3459