Synonyms: Poly[(dimethyliminio)-1,2-ethanediyl(dimethyliminio)-1,5-pentanediyldibromide] (9CI); 1,5-Dibromopentane-N,N,N',N'-tetramethylethylenediaminecopolymer, SRU; 1,5-Dibromopentane-tetramethylethylenediamine polymer, SRU;2,5-Ionene; Poly(N,N,N',N'-tetramethyl-N-ethylene-N'-pentamethylenediammoniumdibromide)