2-Butenoic acid, 4-hydroxy-2-methyl-, 1a,2,3,6,7,7a,8,9,10a,10b-decahydro-1a-(hydroxymethyl)-5-methyl-8-methylene-9-oxooxireno[9,10]cyclodeca[1,2-b]furan-7-yl ester, [1aS-[1aR*,4E,7S*(E),7aS*,10aR*,10bS*]]- 57718-77-1 EUPAHYSSOPIN Eupassopin NSC292662