2-Butenoic acid, 2-methyl-, dodecahydro-4-hydroxy-9a-methyl-3,7-bis(methylene)-6-oxobisoxireno(5,6:7,8)cyclodeca(1,2-b)furan-8-yl ester, (1aR-(1aR*,1bS*,2aS*,4S*,4aS*,7aR*,8S*(Z),9aR*))- 65522-32-9 Cordifene