2-phenyl-3,7-dibenzoyloxy-4-oxo-4H-1-benzopyran

2’,4’-二羟查耳酮

2,4-二羟基苯乙酮

1-[2,4-双(苯甲酰氧基)苯基]乙酮

2,2',4'-tribenzoyloxyacetophenone