You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-[[[(4-chlorophenyl)-cyclobutylmethyl]amino]methyl]-3,5-dimethylpyrazol-1-yl]ethanol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H26ClN3O
assistant