(+-)-Pulegone 1-Isopropylidene-4-methyl-2-cyclohexanone 1-Methyl-4-isopropylidene-3-cyclohexanone 15932-80-6 2-Isopropylidene-5-methylcyclohexanone 3285-04-9 4(8)-p-Menthen-3-one 5-Methyl-2-(1-methylethylidene)cyclohexanone 5-Methyl-2-isopropylidenecyclohexanone Cyclohexanone, 5-methyl-2-(1-methylethylidene)- EINECS 240-070-1 Pulegone d-p-Menth-4(8)-en-3-one p-MENTH-4(8)-EN-3-ONE