Synonyms: 4H-1-Benzopyran-4-one,2,3-dihydro-3,5,7-trihydroxy-2-[4-hydroxy-3-(3-methyl-2-butenyl)phenyl]-8-(3-methyl-2-butenyl)-,(2R,3R)- (9CI); 4H-1-Benzopyran-4-one,2,3-dihydro-3,5,7-trihydroxy-2-[4-hydroxy-3-(3-methyl-2-butenyl)phenyl]-8-(3-methyl-2-butenyl)-,(2R-trans)-; (2R,3R)-Lespedezaflavanone C; Lespedezaflavanone C