3,3',4',5,7-PENTAHYDROXYFLAVANONE

(2R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-chroman-4-one

2-(3,4-DIHYDROXYPHENYL)-3,5,7-TRIHYDROXY-2,3-DIHYDRO-4H-CHROMEN-4-ONE

(2R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-2,3-dihydrochromen-4-one