Phosphine oxide, diphenyl(1-phenyl-1,2-propadienyl)- is a chemical compound registered under CAS number 17620-99-4, with the molecular formula C21H17OP and a molecular weight of about 316.33 g/mol. FireTardant supplies Phosphine oxide, diphenyl(1-phenyl-1,2-propadienyl)- for laboratory research and bulk production; product code 1416182. Send an inquiry for purity, packaging, price and lead time.