Detailed Product Description Thiourea, also known as Antu, is an organic compound of carbon, nitrogen, sulfur and hydrogen, with the formula CSN2H4 or (NH2)2CS Purity:99%min, Specification:ItemStandard(HG/T3266-2002)Test ResultAppearanceWhite crystalline powderConformsAssay≥99.8%99.97%Water≤0.1%0.02%Ash ≤0.03%0.01%PH7.5~9.58.2Water-Insoluble Matter ≤0.02%0.02%Melting Point ≤171170°