Synonyms: 2H-Cyclopenta[7,8]phenanthro[1,10a-b]azirine,cholestano[4,5-b]azirine (9CI); 2H-Cyclopenta[7,8]phenanthro[1,10a-b]azirine,7-(1,5-dimethylhexyl)-3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10,11-tetradecahydro-4a,6a-dimethyl-,[4aR-[4aa,4bb,6aa,7a(R*),9ab,9ba]]-; [4aR-[4aa,4bb,6aa,7a(R*),9ab,9ba]]-7-(1,5-Dimethylhexyl)-3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10,11-tetradecahydro-4a,6a-dimethyl-2H-cyclopenta[7,8]phenanthro[1,10a-b]azirine