[Na+].[Na+].CCN(CC1=CC(=CC=C1)S([O-])(=O)=O)C1=CC=C(C=C1)C(=C1C=CC(C=C1)=[N+](CC)CC1=CC=CC(=C1)S([O-])(=O)=O)C1=CC=CC=C1S([O-])(=O)=O