7,7'-(1,2-Phenylenebis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(2-(carbamoylamino)-4,1-phenylene)azo))bis(naphthalene-1,3,6-trisulphonic) acid 82205-03-6 EINECS 279-918-0