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Certified Reference Standards...
化学名称: Sodium (Z)-1,1'-dinitroso-3,3'-dioxo-[2,2'-biindolinylidene]-5,5'-disulfonate
微笑: O=S(C1=CC(C/2=O)=C(C=C1)N(N=O)C2=C(C3=O)/N(N=O)C4=C3C=C(S(=O)([O-])=O)C=C4)([O-])=O.[Na+].[Na+]