6451-04-3

2,7-Naphthalenedisulfonic acid, 4-amino-6-((4'-((8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-3-((2,5-dichlorophenyl)azo)-5-hydroxy-, tetrasodium salt