3-benzoyl-6-phenylpyran-2,4-dione

3,5-dioxo-5-phenylpentanoic acid

1-苯基-1,3-丁二酮

2,4-dioxo-6-phenyl-3,4-dihydro-2H-pyran-3-carboxylic acid ethyl ester

安息香酸乙酯