4-Methylsulfonyl-3,3,4,5,5-pentachlorobiphenyl is a chemical compound registered under CAS number 128759-99-9, with the molecular formula C13H7 Cl5 O2 S and a molecular weight of about 404.52 g/mol. It is also known as 4-Methylsulfonyl-3,3',4',5,5'-pentachlorobiphenyl. FireTardant supplies 4-Methylsulfonyl-3,3,4,5,5-pentachlorobiphenyl for laboratory research and bulk production; product code 1174897. Send an inquiry for purity, packaging, price and lead time.