2-hydroxy-2-(2-hydroxy-5-methoxyphenyl)-1H-Indene-1,3(2H)-dione

2-(3,4-二羟基苯基)-2-羟基茚-1,3-二酮

2-(2,3-dihydroxyphenyl)-2-hydroxyindene-1,3-dione

2-羟基-2-(4-羟基-3-甲氧基苯基)茚-1,3-二酮

2-羟基-2-(2-羟基-3-甲氧基苯基)茚-1,3-二酮