Molecular formula: CO(NH2)2, molecular weight 60.06, CO(NH2)2 is colorless or white needle-shaped or rod-shaped crystals, industrial or agricultural products are white and slightly reddish solid particles, odorless and tasteless. Density 1.335g/cm3. Melting point 132.7℃. Soluble in water and alcohol, insoluble in ether and chloroform. Slightly alkaline.

It can be used as a large amount of raw materials for the production of melamine, urea-formaldehyde resin, hydrazine hydrate, tetracycline, phenobarbital, caffeine, reduced brown BR, phthalocyanine blue B, phthalocyanine blue Bx, MSG and other products.