You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[2-(3,5-dimethyl-1H-pyrazol-4-yl)ethyl]-1-methyl-3-[(1S)-1-thiophen-2-ylpropyl]urea into its molecular formula.
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C16H24N4OS
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