1,5-Naphthalenedisulfonic acid, 2-((8-((4-chloro-6-((8-hydroxy-4,6-disulfo-7-((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-1-naphthalenyl)amino)-1,3,5-triazin-2-yl)amino)-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo)-, potassium sodium salt 146632-12-4