dicopper disodium4-oxido-7-[[5-oxido-6-(2-oxido-5-sulfamoylphenyl)diazenyl-7-sulfonatonaphthalen-2-yl]amino]-3-(2-oxido-5-sulfamoylphenyl)diazenylnaphthalene-2-sulfonate
CAS No. 12238-74-3