C2N2S

C2N2S is a chemical compound with the molecular formula C2N2S, consisting of two carbon atoms, two nitrogen atoms, and one sulfur atom. It is a cyclic organosulfur compound and is closely related to thiourea derivatives. The structure of C2N2S typically forms a five-membered ring, resembling a fused system of carbon and nitrogen atoms with a sulfur atom incorporated into the ring.

One of the most well-known compounds with this molecular formula is cyanogen disulfide, also referred to as dicyan disulfide. This compound has the chemical structure (SCN)2, where two cyanide groups (CN) are bonded to a single sulfur atom. Cyanogen disulfide is a yellow, crystalline solid that is highly reactive and sensitive to moisture and light. It is primarily used as a precursor in organic synthesis, particularly in the production of thiocyanates and other sulfur-containing compounds.

Cyanogen disulfide is notable for its role in the synthesis of various pharmaceuticals, agrochemicals, and specialty chemicals. It reacts readily with amines, alcohols, and other nucleophiles to form thiocyanates, which are valuable intermediates in organic chemistry. Due to its reactivity, handling cyanogen disulfide requires careful consideration of safety protocols, including the use of protective equipment and controlled reaction conditions.

The compound can be synthesized through the reaction of thiophosgene with ammonia or through the oxidation of thiourea derivatives. Its properties and reactivity make it a significant yet specialized reagent in chemical research and industrial applications.