Synonyms: AC1O5ABL;64381-95-9;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-((2,6-diamino-3-methyl-5-((4-sulfophenyl)azo)phenyl)azo)-, tetralithium salt;Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis(5-(2-(2,6-diamino-3-methyl-5-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-, lithium salt (1:4);tetralithium 5-[[2,6-diamino-3-methyl-5-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]-2-[(E)-2-[4-[[2,6-diamino-3-methyl-5-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]-2-sulfonatophenyl]ethenyl]benzenesulfonate