You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-oxo-1-[3-(1H-1,2,4-triazol-5-yl)propylamino]propan-2-yl]thiophene-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H17N5O2S
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