CAS No 156967-65-6 , 5bH-[1,3]Dioxino[5'',4'':2',3']oxireno[4',4'a][1]benzopyrano[5',6':6,7]indeno[1,2-b]indol-5b-ol,1,4a,4b,6,7,7a,8,13,13b,13c,14,15,15a,16a-tetradecahydro-1,1,13b,13c-tetramethyl-3-(2-methyl-1-propen-1-yl)-,(3S,4aR,4bR,5aS,5bS,7aS,13bS,13cR,15aS,16aS)-