Mainly used as a raw material for the manufacture of guanamine, biguanide, various resins, trimeric cyanamide, fire retardant etc. Used as filler in leatherette and as additive in adhensive agent. Also used as material for making guanidine nitrate, sulfadiazine, virusin etc. In dyeing industry, it is used for making dye auxiliaries. It is used for making accelerator of vulcanizing in rubber industry and for making colour fixatives in printing and dyeing industry; for making hardening agent on the surface of iron and steel; for making synergist in chemical fertilizer industry.