You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 2-[2-[2-(3-methylpyrazol-1-yl)propanoylamino]-1,3-thiazol-4-yl]acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H18N4O3S
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