9-Chloro-2-(4-chlorophenyl)-5,6-dihydro[1]benzothiepino[5,4-c]pyridazin-3(2H)-one 7-oxide C??? ??, ??, ??

9-Chloro-2-(4-chlorophenyl)-5,6-dihydro[1]benzothiepino[5,4-c]pyridazin-3(2H)-one 7-oxide ?? ?? ? ???

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9-Chloro-2-(4-chlorophenyl)-5,6-dihydro[1]benzothiepino[5,4-c]pyridazin-3(2H)-one 7-oxide ?? ??