Copper(I) chloride, also known as cuprous chloride, is a chemical compound with the formula CuCl. It consists of copper in the +1 oxidation state and chloride ions. This compound appears as a white or yellowish solid and is often used in various chemical reactions and processes. In addition to its use in organic synthesis, copper(I) chloride plays a role in the production of copper(I) oxide and serves as a catalyst in certain reactions. It is important in the field of inorganic chemistry and can be found in some industrial applications, including the manufacturing of pigments and dyes.