Sub Group: Metal Isotopes Alphabetical Listing Catalog Number: 13949 Formula: C2H2Cl4O3S CAS Number: 764-09-0 Molecular Weight: 247.91 Synonyms: Chlorosulfuric Acid 2,2,2-Trichloroethyl Ester2,2,2-Trichloroethanol Chlorosulfate3,3,3-Trichloroethyl Chloros