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 N'-[(2S)-2-[[5-(2-methylphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl]propanoyl]benzohydrazide is given. What is its corresponding molecular formula?
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C19H18N4O3S
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