2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxy-, monolithium trisodium salt 3,3'-((3,3'-Dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid), lithium sodium salt (1:1:3) 75659-72-2