You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (2R)-1,2-bis(4-methylphenyl)-2-[[4-methyl-5-(trifluoromethyl)-1,2,4-triazol-3-yl]sulfanyl]ethanone into molecular formula.
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C20H18F3N3OS
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