Synonyms: 3,3'-[(4,4'-diaminobiphenyl-3,3'-diyl)bis(oxy)]dipropane-1-sulfonic acid;3-(2-Amino-5-(4-amino-3-(3-sulfopropoxy)phenyl)phenoxy)propane-1-sulfonic acid;3-[2-amino-5-[4-amino-3-(3-sulfopropoxy)phenyl]phenoxy]propane-1-sulfonic acid;AC1L4LRQ;AC1Q6X8U;3,3'-Bis(3-sulfopropoxy)benzidine;AR-1E8488;1-Propanesulfonic acid, 3,3'-((4,4'-diamino(1,1'-biphenyl)-3,3'- diyl)bis(oxy))bis-;872688-17-0