4H-1-benzopyran-4-one, 5,7-dihydroxy-3-(4-hydroxy-2,5-dimethoxyphenyl)- 5,7-dihydroxy-3-(4-hydroxy-2,5-dimethoxyphenyl)-4H-chromen-4-one 6,8-Dihydroxy-2-(4-hydroxy-2,5-dimethoxy-phenyl)-4H-naphthalen-1-one InChI=1/C17H14O7/c1-22-13-6-11(19)14(23-2)5-9(13)10-7-24-15-4-8(18)3-12(20)16(15)17(10)21/h3-7,18-20H,1-2H Olibergin A