130431-09-3 | Spiro[7,9-epoxy-2H-pyrano[2'',3'':4',5']cyclopenta[1',2':7,8]cycloundec[1,2-c]oxepin-2,2'(5'H)-furan]-5',11(3H)-dione,3',4,4',4a,4b,5,6,7,13,13a,14,15,16,16a,17,17a-hexadecahydro-4,4',4b,13,13,16a-hexamethyl-,(2S,4R,4'R,4aR,4bR,7S,13aR,16aR,17aR)- | C30H42 O6 |