2-Butenoic acid, 2-(hydroxymethyl)-, 1a,5a,7,8,8a,9,10,10a-octahydro-4-(hydroxymethyl)-10a-methyl-8-methylene-7-oxooxireno[5,6]cyclodeca[1,2-b]furan-9-yl ester, [1aR-[1aR*,2Z,4E,5aR*,8aR*,9R*(Z),10aR*]]- 49776-54-7 NSC354050 PUNCTALIATRIN