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4-(2-Methoxy-5-methyl-4-vinylsulfonylphenylazo)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid Structure

4-(2-Methoxy-5-methyl-4-vinylsulfonylphenylazo)-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid