label: TETRASODIUM 4-AMINO-3,6-BIS(2-(4-(2-(2,4-DIAMINO-5-SULFOPHENYL)DIAZENYL)PHENYL)DIAZENYL)-5-HYDROXY-2,7-NAPHTHALENEDISULFONATE
label_lc: tetrasodium 4-amino-3,6-bis(2-(4-(2-(2,4-diamino-5-sulfophenyl)diazenyl)phenyl)diazenyl)-5-hydroxy-2,7-naphthalenedisulfonate