1-(5(Or 6)-methyl-7(or 8)-(1-methylethyl)bicyclo(2.2.2)oct-5-en-2-yl)ethan-1-one 68259-33-6 7- and 8-Acetyl-5-isopropyl-2-methylbicyclo(2.2.2)oct-2-ene EINECS 269-524-7 Ethanone, 1-(5(or 6)-methyl-7(or 8)-(1-methylethyl)bicyclo(2.2.2)oct-5-en-2-yl)-