2,7-Naphthalenedisulfonic acid, 4-[(1-amino-5-hydroxynaphthalenyl)azo]-5-hydroxy-, disodium salt 4-Amino-3-[(4-amino-2-nitrophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt C.I. Acid Blue 68 ACID BLUE 62 Indigo Carmine

ERIOCYANINE A 9-[(4-Amino-2-sodiosulfophenyl)amino]-11-methyl-7-phenyl-5-phenylamino-4-sulfonatobenzo[a]phenazin-7-ium disodium 4,5-diamino-9,10-dihydro-1,8-dihydroxy-9,10-dioxoanthracene-2,7-disulphonate ALPHAZURINE A