Chromate(3-), 3-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo-2-hydroxy-5-nitrobenzenesulfonato(3-)3-hydroxy-4-(2-hydroxy-1-naphthalenyl)azo-7-nitro-1-naphthalenesulfonato(3-)-, sodium