You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(3,4-dimethylphenoxy)-N-(2-methyl-5-piperidin-4-yl-1,2,4-triazol-3-yl)butanamide;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H30ClN5O2
assistant