5-dichlorophenylhydrazine hydrochloride_Kain Industrial Additive

Background and overview[1][2] 2,5-Dichlorophenylhydrazine hydrochloride is an organic chemical substance that can be used as an organic intermediate. Preparation[1] Under nitrogen protection, add concentrated hydrochloric acid (120 ml, 32%, 1.2 moles) into a 500ml bottle, then lower the temperature to -2 to 0°C and stir at low temperature. Then 2,5-dichloroaniline (20 g, 123 mmoles) was…