You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 1-[(2,5-dimethylphenyl)methyl]-3-[(3S)-3-methylpiperidin-1-yl]sulfonylpyrazole-4-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H27N3O4S
assistant