Synonyms(Diphenylphosphoroso)benzene; Orlistat USP Related Compound C; Alprostadil EP Impurity K Close (Diphenylphosphoroso)benzene; Orlistat USP Related Compound C; Alprostadil EP Impurity K Related products Triphenylphosphine Oxide M.F. M.W. 278.28 CAT# AR-O22977 CAS# 791-28-6