Chromium(IV) chloride is an unstable compound of chromium and chlorine with the chemical formula CrCl4. It is generated by combining chromium(III) chloride and chlorine gas at elevated temperatures, but reverts to those substances at room temperature.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.