You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-N-(3-chloro-4-methylphenyl)-2-(1H-1,2,4-triazol-5-yl)piperidine-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C15H18ClN5O
assistant