Amino 5 nitrophenol was synthesized using o aminophenol and urea as raw materials through cyclocondensation,nitration and alkaline hydrolysis in turn.

• 以邻氨基苯酚和尿素为原料,对环合、硝化、碱性水解的传统工艺进行改进,合成了2氨基5硝基苯酚。