5-Chloro-2-[5-hydroxy-4-(p-hydroxyphenylazo)-3-methyl-1H-pyrazol-1-yl]benzenesulfonic acid C??? ??, ??, ??

5-Chloro-2-[5-hydroxy-4-(p-hydroxyphenylazo)-3-methyl-1H-pyrazol-1-yl]benzenesulfonic acid ?? ?? ? ???

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5-Chloro-2-[5-hydroxy-4-(p-hydroxyphenylazo)-3-methyl-1H-pyrazol-1-yl]benzenesulfonic acid ?? ??