85587-35-5 Benzenesulfonic acid, 4,4'-(1,3-phenylenebis(azo(4,6-diamino-3,1-phenylene)azo))bis-, diammonium salt Diammonium 4,4'-(1,3-phenylenebis(azo(4,6-diamino-3,1-phenylene)azo))bis(benzenesulphonate) EINECS 287-894-8