5-Amino-4-benzoyl-3-nitrobenzoesaeure 、
5-Amino-4-(4'-methylbenzoyl)-3-nitrobenzoesre 以3-hydroxy-4-(4'-methylbenzoyl)-5-nitrobenzoic acid is obtained as a hemihydrate with a melting point of 249.5°-251° C.的产率得到3-Hydroxy-4-(4'-methylbenzoyl)-5-nitrobenzoesaeure