Synonyms: 2-Propen-1-one,1-[2,4-dihydroxy-5-(3-methyl-2-butenyl)phenyl]-3-(4-hydroxyphenyl)-, (2E)-(9CI); 2-Propen-1-one,1-[2,4-dihydroxy-5-(3-methyl-2-butenyl)phenyl]-3-(4-hydroxyphenyl)-, (E)-;Chalcone, 2',4,4'-trihydroxy-5'-(3-methyl-2-butenyl)-, (E)- (8CI);Bavachalcone; Broussochalcone B