2-Propenoic acid, 2-methyl-, 4-(acetyloxy)-2,3,3a,4,5,7,9a,9b-octahydro-3,6,9-trimethyl-2,7-dioxaazuleno(4,5-b)furan-4-yl ester, (3S-(3alpha,3aalpha,4alpha,9abeta,9balpha))- 41989-32-6 Olgin