thiourea CAS No.: 62-56-6 1)Purity: 99% min 2)Water:0.5% max 3) ... : HG/T 3266-2002Specifications:1).Character Molecular Formula: CH4N2SCAS No.: 62-56-6H.S Code: 29309090.90 White, glazed crystal, bitter, soluble ... mine3, dyeing auxiliary; 4, rubber accelerator; 5, developer and toner; 6, plating additive; 7, used in the production of gold and ...