O-ethyl O-(4-methyl-2-oxo-2H-chromen-7-yl) phenylphosphonothioate is a chemical compound registered under CAS number 5525-99-5, with the molecular formula C18H17O4PS and a molecular weight of about 360.36 g/mol. FireTardant supplies O-ethyl O-(4-methyl-2-oxo-2H-chromen-7-yl) phenylphosphonothioate for laboratory research and bulk production; product code 1980172. Send an inquiry for purity, packaging, price and lead time.