2-Amino-5-nitrophenol

2-Amino-5-nitrophenol has been used as starting material in the synthesis of series of (Z)-2-(substituted aryl)-N-(3-oxo-4-(substituted carbamothioyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-yl) hydrazine carboxamides, as semi permanent (nonoxidative) hair colorant and as toner in permanent (oxidative) hair dye products, in synthesis of series of 7-benzylamino-2H-1,4-benzoxazin-3(4H)-ones, anticonvulsant agents. Also used as a reactant for, diazotation and coupling reactions, preparation of biologically and pharmacologically active molecules. It is also applied in hair dyes and to make azo dyes.