You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-1-[(5-chloro-1,3-dimethylpyrazol-4-yl)methyl]-2-(pyrazol-1-ylmethyl)piperidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H22ClN5
assistant