Copper(I) bromide is a chemical compound with the formula CuBr. It consists of copper in the +1 oxidation state and bromine. This compound appears as a white or light yellow solid and is often used in various chemical reactions and applications, including organic synthesis and as a catalyst. In terms of properties, copper(I) bromide is relatively stable but can react with moisture and air, leading to the formation of copper(II) bromide and other products. It is important in the field of inorganic chemistry and is studied for its unique electronic and optical properties.