84100-30-1 Benzenesulfonic acid, 4,4'-((3,3'-dichloro(1,1'-biphenyl)-4,4'-diyl)bis(azo(2-acetyl-1-oxo-2,1-ethanediyl)imino))bis-, potassium salt EINECS 282-111-6 p,p'-((3,3'-Dichloro(1,1'-biphenyl)-4,4'-diyl)bis(azo(2-acetyl-1-oxoethylene)imino))bis(benzenesulphonic) acid, potassium salt