Synonyms: 4H-1-Benzopyran-4-one,2,3-dihydro-3,5-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-6-(3-methyl-2-butenyl)-,(2R,3R)- (9CI); 4H-1-Benzopyran-4-one,2,3-dihydro-3,5-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-6-(3-methyl-2-butenyl)-,(2R-trans)-; Isotirumalin