(4-Chlorophenyl)(2-chloro-5-hydroxyphenyl)(2,3-dichloro-6-hydroxyphenyl)methanesulfonic acid C??? ??, ??, ??

(4-Chlorophenyl)(2-chloro-5-hydroxyphenyl)(2,3-dichloro-6-hydroxyphenyl)methanesulfonic acid ?? ?? ? ???

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(4-Chlorophenyl)(2-chloro-5-hydroxyphenyl)(2,3-dichloro-6-hydroxyphenyl)methanesulfonic acid ?? ??