1,2,4,5-Diepoxypentane 1,4-Pentadiene diepoxide 1:4-Pentadiene dioxide 2,2'-Methylenebisoxirane 4051-27-8 NSC 47545 Oxirane, 2,2'-methylenebis- (9CI) Pentane, 1,2:4,5-diepoxy- Pentitol, 1,2:4,5-dianhydro-3-deoxy- (9CI)