You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[(3,4-dichlorophenyl)methyl-[2-[(2-methylphenyl)methylsulfanyl]acetyl]amino]-N-(2-methylpropyl)butanamide into its molecular formula.
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C25H32Cl2N2O2S
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