for the following products
2,7-Naphthalenedisulfonicacid,3,3'-[[1,1'-biphenyl]-4,4'-diylbis(2,1-diazenediyl)]bis[5-amino-4-hydroxy-,sodium salt (1:4) | Ci no 22610 | Direct Blue | Direct blue 2B | Direct Blue 6 and Direct Blue 2B (C.I. Direct Blue 6)
