2-Norpinene, 6,6-dimethyl- 32863-61-9 6,6-Dimethylbicyclo[3.1.1]-2-heptene 6,6-Dimethylnorpin-2-ene Apopinen Apopinene Bicyclo[3.1.1]hept-2-ene, 6,6-dimethyl- NSC54388