4-amino-3-[[5-[[5-chloro-6-methyl-2-(methylsulphonyl)-4-pyrimidinyl]amino]-2-sulphophenyl]azo]-6-[(2,5-disulphophenyl)azo]-5-hydroxynaphthalene-2,7-disulphonic acid, potassium sodium salt

4-Amino-3-[[5-[[5-chloro-6-methyl-2-(methylsulfonyl)-4-pyrimidinyl]amino]-2-sulfophenyl]azo]-6-[(2,5-disulfophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid/potassium/sodium,(1:x:x) salt