You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (E)-3-(5-chloro-1,3-dimethylpyrazol-4-yl)-N-(1-hydroxy-2-methylpropan-2-yl)prop-2-enamide into its molecular formula.
user
C12H18ClN3O2
assistant