Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-amino-, ion(2-), polymer, salt with N,N,N-trimethylmethanaminium Methanaminium, N,N,N-trimethyl-, salt with 2,2'-(1,2-ethenediyl)bis(5-aminobenzenesulfonic acid polymer- NSC633423