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3-(3-Phenylureido)-1-(4-sodiosulfophenyl)-4-[p-[N-methyl-N-(β-sodiosulfoethyl)amino]benzylidene]-2-pyrazolin-5-one Structure

3-(3-Phenylureido)-1-(4-sodiosulfophenyl)-4-[p-[N-methyl-N-(β-sodiosulfoethyl)amino]benzylidene]-2-pyrazolin-5-one