2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-((4'-((1-hydroxy-4-sulfo-2-naphthalenyl)azo)-3,3'-dimethoxy(1,1'-biphenyl)-4-yl)azo)-, dilithium monosodium salt 5-Amino-4-hydroxy-3-((4'-((1-hydroxy-4-sulfo-2-naphthyl)azo)-3,3'-dimethoxy-4-biphenylyl)azo)-2,7-naphthalenedisulfonic acid, lithium sodium salt (1:2:1) 75673-19-7