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¡æmin
Appearance: white fine crystal
Uses: intermediate of medicine and chemicals foe bleaching agent, artificial silk, medicine, dye, resin, developer, gold extraction and plating