2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxy-, trilithium monosodium salt 3,3'-((3,3'-Dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid), lithium sodium salt (1:3:1) 75752-17-9