sodium 5-((1,8-dihydroxy-3,6-disulphonaphthalen-2-yl)azo)-4-hydroxy-3((8-hydroxy-3,6-disulphonaphthalen-1-yl)azo)naphthalene-2,7-disulphonate

4-Hydroxy-3-[(8-hydroxy-3,6-disulfo-1-naphtyl)azo]-5-[(1,8-dihydroxy-3,6-disulfo-2-naphtyl)azo]naphthalene-2,7-disulfonic acid hexasodium salt

2,7-Naphthalenedisulfonicacid,5-[(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo]-4-hydroxy-3-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-,hexasodiumsalt

2,7-Naphthalenedisulfonic acid,5-[(1,8-dihydroxy-3,6-disulfo-2-naphthalenyl)azo]-4-hydroxy-3-[(8-hydroxy-3,6-disulfo-1-naphthalenyl)azo]-,hexasodium salt