Common Name 1,3-Bis(diphenylphosphino)propane Other Names Trimethylene bis(diphenylphosphine) | 1,3-Bis(diphenylphosphanyl)propane | 1,3-Di(diphenylphosphino)propane | 1,3-Bis(diphenylphosphanyl)propane | 1,3-Bis(diphenylphosphino)propane | 1,3-Di(diphenylphosphino)propane | 1,3-Bis(diphenylphosphanyl)propane | 1,3-Bis(diphenylphosphanyl)propane | Bis(diphenylphosphino)propane | 1,3-Bis(diphenylphosphino)propane | 1,2-Bis(diphenylphosphanyl)propane English Name 1,3-Bis(diphenylphosphino)propane CAS No. 6737-42-4 EINECS 229-791-2 Molecular Formula C27H26P2 Molecular Weight 412.443 Boiling Point 529.7±33.0 °C Melting Point 63-65 °C Flash Point 291.5±31.7 °C Appearance Off-white crystalline powder Application Used to complex divalent palladium catalysts for the copolymerization of carbon monoxide and ethylene to produce polyketones.