4H-1-Benzopyran-4-one,2,3-dihydro-5,7-dihydroxy-2-[4-hydroxy-3-(3-methyl-2-buten-1-yl)phenyl]-8-(3-methyl-2-buten-1-yl)-,(2S)-;Euchrestaflavanone A;(2S)-2,3-Dihydro-5,7-dihydroxy-2-[4-hydroxy-3-(3-methyl-2-buten-1-yl)phenyl]-8-(3-methyl-2-buten-1-yl)-4H-1-benzopyran-4-one;Euchestraflavanone A