苯甲酸酐

(2-(2,5-bis(benzoyloxy)phenyl)-2-oxoethyl)triphenylphosphonium bromide

1-(2,5-dihydroxyphenyl)-2-(triphenylphosphoranylidene)ethanone

安息香酸乙酯

2,5-二甲氧基苯乙酮