You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[[4-(2-methyl-2-thiophen-2-ylpropyl)-5-oxo-1H-1,2,4-triazol-3-yl]sulfanyl]acetic acid into its molecular formula.
user
C12H15N3O3S2
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