117415-46-0 3-(1,2-Epoxybut-3-enyl)-4-vinylcyclopentene Caudoxirene Oxirane, 2-ethenyl-3-(5-ethenyl-2-cyclopenten-1-yl)-, (2R-(2alpha,3beta(1S*,5S*)))- Oxirane, 2-ethenyl-3-(5-ethenyl-2-cyclopenten-1-yl)-, (2alpha,3beta(1R*,5R*))-