1-(3,3-DIMETHYLOXIRANYL)ETHANONE 2-Pentanone, 3,4-epoxy-4-methyl- 3,3-Dimethyl-2-acetyloxirane 3,4-Epoxy-4-methylpentan-2-one 3-Acetyl-2,2-dimethyloxirane 4-Methyl-3,4-epoxypentan-2-one 4478-63-1 AI3-03900 EINECS 224-758-9 Epoxymesityl oxide Ethanone, 1-(3,3-dimethyloxiranyl)- (9CI) NSC 139151