CAS No 134788-15-1 , 7H,8H-Furo[3',4':4,4a]naphtho[1,8-bc]furan-10a(1H)-carboxylicacid,10-(acetyloxy)octahydro-3,5-dihydroxy-4-methyl-8-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]oxy]-4-[(1aR,2S,3aS,6aS,7S,7aS)-3a,6a,7,7a-tetrahydro-6a-hydroxy-7a-methyl-2,7-methanofuro[2,3-b]oxireno[e]oxepin-1a(2H)-yl]-,methyl ester, (2aR,3S,4S,4aR,5R,7aS,8S,10R,10aS,10bR)-