98072-97-0 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, coupled with diazotized 2'-(4-aminophenyl)-6-methyl[2,6'-bibenzothiazole]-7-sulfonic acid, diazotized 3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diamine and 5,5'-[oxybis[(5-hydroxy-3,1-phenylene)oxy]]bis[1,3-ben 98073-04-2 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 3,3'-dichloro[1,1'-biphenyl]-4,4'-diamine and 5,5'-[(5-hydroxy-1,3-phenylene)bis(oxy)]bis[1,3-benzenediol], sodium salts