1329-99-3 25377-78-0 34448-33-4 Cyclohexane, 1-methyl-4-(1-methylethyl)-, tetradehydro deriv. EINECS 215-532-0 EINECS 252-034-2 Isopropylmethylcyclohexane, tetradehydro derivative Menthane, tetradehydro derivative