Thiourea is a chemical compound with the formula CH4N2S. It is a colorless, crystalline solid that is soluble in water and alcohol. Thiourea is often used in various industrial applications, including the production of fertilizers, pharmaceuticals, and as a reagent in chemical synthesis. In addition to its industrial uses, thiourea has applications in photography and as a stabilizer for certain metal ions. It is also studied for its potential role in biological systems, particularly in relation to cancer research and antioxidant properties.