[Na+].[Na+].[Na+].[Na+].NC1=C2C([O-])=C(\N=N\C3=CC=C(C=C3)S(=O)(=O)CCOS(O)(=O)=O)C(=CC2=CC(=C1\N=N\C1=CC=C(C=C1)S(=O)(=O)CCOS([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O