5-[(5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methyl-2-sulphophenyl)azo]naphthalene-2,7-disulphonic acid, sodium salt

2,7-Naphthalenedisulfonic acid, 5-[(5-chloro-2-fluoro-6-methyl- 4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methyl -2-sulfophenyl)azo]-, sodium salt

5-[(5-Chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methyl-2-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid/sodium,(1:x) salt