label: 2,7-NAPHTHALENEDISULFONIC ACID, 4-AMINO-5-HYDROXY-3-((4-(5-((4-HYDROXYPHENYL)AZO)-1H-BENZIMIDAZOL-2-YL)PHENYL)AZO)-6-(PHENYLAZO)-
label_lc: 2,7-naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-(5-((4-hydroxyphenyl)azo)-1h-benzimidazol-2-yl)phenyl)azo)-6-(phenylazo)-