5-Oxo-1-(p-potassiosulfophenyl)-4-(2-methoxy-5-methyl-4-vinylsulfonylphenylazo)-2-pyrazoline-3-carboxamide C??? ??, ??, ??

5-Oxo-1-(p-potassiosulfophenyl)-4-(2-methoxy-5-methyl-4-vinylsulfonylphenylazo)-2-pyrazoline-3-carboxamide ?? ?? ? ???

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5-Oxo-1-(p-potassiosulfophenyl)-4-(2-methoxy-5-methyl-4-vinylsulfonylphenylazo)-2-pyrazoline-3-carboxamide ?? ??