2,7-Naphthalenedisulfonic acid,3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis- [5-amino-6-[[4-[(3-chloro-2-hydroxypropyl)- ethylamino]phenyl]azo]-4-hydroxy-,tetrasodium salt
2,7-Naphthalenedisulfonic acid,3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis- [5-amino-6-[[4-[(3-chloro-2-hydroxypropyl)- ethylamino]phenyl]azo]-4-hydroxy-,tetrasodium salt
