Synonyms: 6,9-Cyclo-9,10-secoergostane;1H-Cyclobut[e]indene,decahydro-4a-methyl-2-(2-methylcyclohexyl)-5-(1,4,5-trimethylhexyl)-,[2(2R),2aR,4aR,5R(1R,4S),7aS,7bR]-[partial]-; [2aR-[2(2R*),2aa,4ab,5b(1R*,4S*),7aa,7bb]]-Decahydro-4a-methyl-2-(2-methylcyclohexyl)-5-(1,4,5-trimethylhexyl)-1H-cyclobut[e]indene