... Free sample 4.good texture, brilliant crystalline 2012 Hot dale Factory Thiourea 99% 1).Character Molecular Formula: CH4N2SCAS No.: ... , used in the production of gold and electrolytic copper; 8, material of resin pressed powder; 9, used to produce cold wave ... lotion; 10, used to produce thiourea dioxide ; 11, chemical reagent; 12, blueprint ...