You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 5-(3-chlorophenyl)sulfanyl-4-propan-2-yl-1-(pyridin-2-ylmethyl)imidazole-2-carbaldehyde is given. What is its corresponding molecular formula?
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C19H18ClN3OS
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