found: Wikipedia, July 17, 2012:(Copper(I) chloride (Copper(I) chloride, commonly called cuprous chloride, is the lower chloride of copper, with the formula CuCl. The substance is a white solid sparingly soluble in water, but very soluble in concentrated hydrochloric acid. Impure samples appear green due to the presence of copper(II) chloride; IUPAC name: Copper(I) chloride)
found: ChemSpider database, via WWW, July 17, 2012(Copper(I) chloride. Molecular Formula: ClCu. Systematic name: Copper(1+) chloride. Names and synonyms: Copper(I) chloride; copper chloride; copper monochloride; Copper(1+) chloride [ACD/IUPAC Name]; CuCl [Formula]; Cuprous chloride; copper (+1) chloride; copper(+1) cation chloride; copper(i)-chloride; Cuproid)
found: Sigma-Aldrich website, July 17, 2012(Copper(I) chloride. Synonyms: Copper monochloride, Cuprous chloride)