Phosphen-4 is a chemical compound registered under CAS number 597-80-8, with the molecular formula C18H13Cl2O4P and a molecular weight of about 395.17 g/mol. It is also known as Phosphoric acid bis(2-chlorophenyl)phenyl ester. DeWeiChem supplies Phosphen-4 for laboratory research and bulk production; product code 846191. Send an inquiry for purity, packaging, price and lead time.