4-Methoxyphenethylamine was used in the synthesis of :pyrrolo[3,2-c]carbazolepoly(4-methoxyphenethylamine), required for the immobilization of nitrogenated bases and oligonucleotidesorganopolyphosphazenes such as poly[bis(4-methoxy benzylamino)polyphosphazene] and poly[bis(4-methoxyphenethylamino)polyphosphazene]