You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule potassium;2,6-dichloro-4-[[5-(diethylsulfamoyl)-3-ethyl-2-methoxyphenyl]carbamoyl]phenolate into molecular formula.
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C20H23Cl2KN2O5S
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