Synonyms: Neoquassin(6CI);Phenanthro[10,1-bc]pyran-1,11-dione,3a,4,5,6a,7,7a,8,11a,11b,11c-decahydro-5-hydroxy-2,10-dimethoxy-3,8,11a,11c-tetramethyl-(7CI);Phenanthro[10,1-bc]pyran, picrasa-2,12-diene-1,11-dione deriv.;NSC139168;Neoquassine;Nigakihemiacetal B;Simalikahemiacetal A