1322-68-5 27417-37-4 3-Buten-2-one, 4-(2,2-dimethyl-6-methylenecyclohexyl)-, monomethyl deriv. 4-(2,2-Dimethyl-6-methylenecyclohexyl)but-3-en-2-one, monomethyl derivative EINECS 248-449-3