4-di(phenyl)phosphanylbutyl-di(phenyl)phosphane;7688-25-7;14805_FLUKA;dppb;Butane-1,4-diylbis(diphenylphosphine);EINECS 231-698-7;Phosphine, 1,4-butanediylbis(diphenyl-;261947_ALDRICH;1,4-Bis[diphenylphosphino]butane;[4-(Diphenylphosphino)butyl](diphenyl)phosphine;1,4-Bis(diphenylphosphino)butane;Bis(1,4-diphenylphosphino)butane
4-di(phenyl)phosphanylbutyl-di(phenyl)phosphane