The chemical name for CCl4 is carbon tetrachloride. According to the International Union of Pure and Applied Chemistry, it is called tetrachloromethane. It is also known as perchloromethane.
The molecule CCl4 is named according to the number of chlorine and carbon atoms present in it. Since there are four chlorine atoms present, the prefix "tetra" is used to indicate the precise number of chlorine atoms in the name "carbon tetrachloride." According to the IUPAC nomenclature rules, compounds that contain only one carbon with four single bonds are described as "methane." Therefore, according to IUPAC rules, CCl4 is called tetrachloromethane to indicate the number of carbon atoms in addition to the number of chlorine atoms.