2-Vinyl-3-(5-vinyl-cyclopent-2-enyl)-oxirane 2-vinyl-3-(5-vinylcyclopent-2-en-1-yl)oxirane Caudoxirene InChI=1/C11H14O/c1-3-8-6-5-7-9(8)11-10(4-2)12-11/h3-5,7-11H,1-2,6H cis-3-(trans-1,2-Epoxybut-3-enyl)-4-vinylcyclopentene oxirane, 2-ethenyl-3-(5-ethenyl-2-cyclopenten-1-yl)-