M-Nitroaniline (500gm)

4-Nitroaniline forms molecular adducts with 4-amino benzoic acid[1]. It reacts with nitrite ion in hydrochloric acid medium to form 4-nitrophenyldiazonium chloride, which couples with naphth-1-ol in alkaline medium to give a purple azo dye.M-Nitroaniline 500gm