disodium;(3E)-7-amino-3-[[2-methoxy-4-[3-methoxy-4-[(2E)-2-(1-oxo-4-sulfonatonaphthalen-2-ylidene)hydrazinyl]phenyl]phenyl]hydrazinylidene]-4-oxonaphthalene-2-sulfonateHCID 14323655CAS 110735-25-6 · C34H25N5Na2O10S2