Synonyms: AC1O5U7C;[(4R,4aR,5S,8aR)-3,4a,5-trimethyl-8-oxo-4,5,6,7,8a,9-hexahydrobenzo[f][1]benzofuran-4-yl] (E)-2-methylbut-2-enoate;2-Butenoic acid, 2-methyl-, 4,4a,5,6,7,8,8a,9-octahydro-3,4a,5-trimethyl-8-oxonaphtho(2,3-b)furan-4-yl ester, (4R-(4alpha(E),4abeta,5beta,8abeta))-;86537-99-7