Thiourea Thiourea is raw material for synthesis of sulfathiazole, methionine and other medicine; as dyeing additive, material of resin and compression molding powder; as vulkacit of rubber and floatin agent of metallic mineral; as catalyst for manufacturing of phthalic anhydride and fumaric acid; as metal anti-corrosion agent; as developing agent and color matching agent in photography aspect; in heavy nitrogen sensitized paper, synthetic resin coating, anion exchange resin, bactericide aspect; also as fertilizer.