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 (2R)-4-methylsulfanyl-2-[[(E)-3-(5-methylthiophen-2-yl)prop-2-enoyl]amino]butanoic acid is given. What is its corresponding molecular formula?
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C13H17NO3S2
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