苯甲醛

1-(2-hydroxy-4,6-dimethoxy-phenyl)-2-methoxy-3-phenyl-1,3-propanedione

3,5-dimethoxy-2-(2-methoxyacetyl)phenyl benzoate

[2-oxo-2-(2,4,6-trihydroxyphenyl)ethyl] benzoate

苯甲酸酐