7-methyl-5,6-dimethylidenebicyclo[2.2.1]hept-2-ene;7-methyl-5,6-dimethylene-bicyclo[2.2.1]hept-2-ene;7-methyl-5,6-dimethylenebicyclo[2.2.1]hept-2-ene;7-methyl-5,6-dimethylidene-bicyclo[2.2.1]hept-2-ene
7-methyl-5,6-dimethylidenebicyclo[2.2.1]hept-2-ene