Synonyms: 2H-Pyran-2-one,4-methoxy-6-(2-phenylethenyl)-, (E)-; 2H-Pyran-2-one, 4-methoxy-6-styryl-, (E)-(8CI); Yangonin, demethoxy- (6CI); 5,6-Dehydrokavain; 5,6-Dehydrokawain;Demethoxyyangonin; Desmethoxyyangonin; NSC 112161; NSC 68686;trans-5,6-Dehydrokawain