3,7,7-Trimethyl-3-(3-methyl-2-butenyl)bicyclo(4.1.0)heptan-4-one 4,7,7-Trimethyl-4-(3-methyl-2-butenyl)bicyclo(4.1.0)heptan-3-one 74499-59-5 Bicyclo(4.1.0)heptan-3-one, 4,7,7-trimethyl-4-(3-methyl-2-butenyl)- EINECS 277-896-7