Structural formula:            

Molecular formula: (NH₂)₂CS

Molecular weight : 76.12

Specification:

                Purity: 99.0% min

                moisture: 0.40% max

                Ash: 0.10% max

                Water insolubles: 0.02% max

                Thiocyanate(as SCN):0.02% max

                Melting point: 171℃min

Appearance: white  fine crystal

Uses: intermediate of medicine and chemicals foe bleaching agent, artificial silk, medicine, dye, resin, developer, gold extraction and plating