Preparation method of p-aminobenzenesulfonic acid_Kain Industrial Additive

Overview【1】【2】 4-Aminobenzenesulphonate (4-ABS), commonly known as sulfamate, is an important intermediate widely used in the production of chemical products such as dyes, printing and dyeing auxiliaries, spices, food pigments, medicines and pesticides. , it is also an intermediate product after anaerobic decolorization of many azo dyes. It contains amino (-NH2) and sulfonic acid (-SO3) amphoteric…