5-methyl-2-(1-methylethylidene)cyclohexanone(+-)-Pulegone4(8)-p-Menthen-3-onePulegonep-menth-4(8)-en-3-one5-Methyl-2-isopropylidenecyclohexanone1-Methyl-4-isopropylidene-3-cyclohexanone1-Isopropylidene-4-methyl-2-cyclohexanone5-Methyl-2-(1-methylethylidene)cyclohexanone