You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [(1S,2R)-2-(5-methylthiophen-2-yl)cyclopropyl]-[4-(oxan-4-ylmethyl)piperazin-1-yl]methanone by IUPAC nomenclature, provide its molecular formula.
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C19H28N2O2S
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