Phosphine selenide, tris(3-methoxyphenyl)- is a chemical compound registered under CAS number 651296-32-1, with the molecular formula C21H21O3PSe and a molecular weight of about 431.34 g/mol. FireTardant supplies Phosphine selenide, tris(3-methoxyphenyl)- for laboratory research and bulk production; product code 1138068. Send an inquiry for purity, packaging, price and lead time.