4-dichlorophenylhydrazine_Kain Industrial Additive

Background and overview[1] 2,4-Dichlorophenylhydrazine is an important chemical raw material. The current preparation methods of 2,4-dichlorophenylhydrazine cannot avoid operations such as diazotization, sulfonation, and reduction of 2,4-dichloroaniline. These operations have high requirements on reaction temperature, and diazotization must be Low-temperature reaction, and poor control of the dripping speed and reaction degree of the sodium nitrite…