2-(4-methoxyphenyl)-5-nitro-1,3-benzoxazole

2-methyl-6-nitro-3-oxo-4H-1,4-benzoxazine-2-carboxylic acid

7-硝基-3,4-二氢-2H-1,4-苯并噁嗪

2-吡啶-4-苯并噁唑-5-胺

2-(benzylideneamino)-4-nitrophenol