You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (Z,2E)-6-methoxy-5-methyl-N-(1-methylsulfanyl-4-oxopentan-3-yl)-2-prop-2-enylidenehept-4-enamide into its molecular formula.
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C18H29NO3S
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