({3-[1-{3-[(Bis-carboxymethyl-amino)-methyl]-2,5-dimethyl-4-oxo-cyclohexa-2,5-dienylidene}-1-(2-sulfo-phenyl)-methyl]-6-hydroxy-2,5-dimethyl-benzyl}-carboxymethyl-amino)-acetic acid AIDS-156536 AIDS156536 Methyl Xylenol Blue Methyl Xylenol Blue (*sodium salt*) NSC624918 (SODIUM SALT)