Magnesium;5-[[1-(2,4-dimethylanilino)-1,3-dioxobutan-2-yl]diazenyl]-2-[4-[[1-(2,4-dimethylanilino)-1,3-dioxobutan-2-yl]diazenyl]-2-sulfonatophenyl]benzenesulfonate
CAS No. 85566-70-7