6-Chloro-2,3-diaminotoluene is a white solid powder at room temperature and pressure, with significant alkalinity and strong nucleophilicity. Due to the presence of two amino units in the ortho position of the benzene ring, it can undergo condensation reactions with aldehydes to prepare corresponding benzimidazole derivatives. This reaction is widely used to prepare benzimidazole drugs and bioactive molecules. It is an intermediate in organic synthesis and medicinal chemistry, such as Nemonapride.