label: 6,6'-(1,2-ETHENEDIYLBIS((3-SULFO-4,1-PHENYLENE)-2,1-DIAZENEDIYL))BIS(4-AMINO-5-HYDROXY-1,3-NAPHTHALENEDISULFONIC ACID)
label_lc: 6,6'-(1,2-ethenediylbis((3-sulfo-4,1-phenylene)-2,1-diazenediyl))bis(4-amino-5-hydroxy-1,3-naphthalenedisulfonic acid)