(1,1'-Biphenyl)-3,3'-dicarboxylic acid, 4-((4,5-dihydro-3-methyl-5-oxo-1-(6-sulfo-2-naphthalenyl)-1H-pyrazol-4-yl)azo)-4'-((1-(((2-methoxyphenyl)amino)carbonyl)-2-oxopropyl)azo)-, potassium sodium salt 84100-79-8 EINECS 282-159-8