1(Or4)-methyl-4(or1)-(1-methylethyl)bicyclo(2.2.2)oct-5-en-2-yl acetate 68991-89-9 Acetoxy-1-methyl-4-isopropylbicyclo(2.2.2)oct-5-ene Bicyclo(2.2.2)oct-5-en-2-ol, 1(or 4)-methyl-4(or 1)-(1-methylethyl)-, acetate EINECS 273-653-4