di(phenyl)phosphanylmethyl-di(phenyl)phosphane 2071-20-7 EINECS 218-194-2 Methylenebis(diphenylphosphine) 127566_ALDRICH Bis(diphenylphosphino)methane Methanediylbis[diphenylphosphine] Methylenebis[diphenylphosphine] NSC147767 Phosphine, methylenebis[diphenyl- Tetraphenylmethylenediphosphine