You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(2S)-2-(3,5-dimethylpyrazol-1-yl)-2-thiophen-2-ylethyl]pyridine-3-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H18N4O2S2
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