You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S,3S)-2-(1-methylpyrazol-4-yl)-6-oxo-1-(thiophen-3-ylmethyl)piperidine-3-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H17N3O3S
assistant