1-(3,3-Dimethylbicyclo(2.2.1)hept-2-yl)ethan-1-one 2-Acetyl-3,3-dimethylnorbomane 42370-07-0 EINECS 255-779-1 Ethanone, 1-(3,3-dimethylbicyclo(2.2.1)hept-2-yl)-