Synonyms: 7,9-Cyclo-7,8-secolanostane;Spiro[1H-indene-1,5'-[5H]indene],1'-[(1R)-1,5-dimethylhexyl]hexadecahydro-3'a,4,4,7a,7'a-pentamethyl-,(1'R,3aS,3'aS,7aS,7'aR)- (9CI); Spiro[1H-indene-1,5'-[5H]indene],1'-(1,5-dimethylhexyl)hexadecahydro-3'a,4,4,7a,7'a-pentamethyl-,[1'R(R),3'aS,5'(3aS,7aS),7'aR]-[partial]-; [1'R-[1'a(R*),3'ab,5'(3aS*,7aS*),7'aa]]-1'-(1,5-Dimethylhexyl)hexadecahydro-3'a,4,4,7a,7'a-pentamethylspiro[1H-indene-1,5'-[5H]indene]