You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2,4-dichloro-6-[[2-(4-chlorophenyl)sulfanyl-5-nitrophenyl]methylamino]-3-methylphenol using the IUPAC nomenclature.
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C20H15Cl3N2O3S
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