1322-71-0 3-Buten-2-one, 4-(2,6,6-trimethyl-1-cyclohexen-1-yl)-, monomethyl deriv. 4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one, monomethyl derivative EINECS 215-341-2