2,7-Naphthalenedisulfonic acid, 4-amino-3-4-(aminosulfonyl)phenylazo-6-5-(5-chloro-2,6-difluoro-4-pyrimidinyl)amino-2-sulfophenylazo-5-hydroxy-, trisodium salt

trisodium 4-amino-3-[[4-(aminosulphonyl)phenyl]azo]-6-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-sulphonatophenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate

4-Amino-3-[[4-(aminosulfonyl)phenyl]azo]-6-[[5-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-2-(sodiosulfo)phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt