2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-,diazotized,coupled with diazotized 3,3'-dichloro[1,1'-biphenyl]-4,4'-diamine and 5,5'-oxybis[1,3-benzenediol],sodium salts
2,7-Naphthalenedisulfonic acid,4-amino-5-hydroxy-,diazotized,coupled with diazotized 3,3'-dichloro[1,1'-biphenyl]-4,4'-diamine and 5,5'-oxybis[1,3-benzenediol],sodium salts