5,3'-dihydroxy-5'-(3-hydroxy-3-methyl-1-butenyl)-4'-methoxy-2'',2''-dimethylpyrano(5,6:6,7)isoflavanone
5,3'-dihydroxy-5'-(3-hydroxy-3-methyl-1-butenyl)-4'-methoxy-2'',2''-dimethylpyrano(5,6:6,7)isoflavanone