You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[1-(4-methoxyphenyl)pyrazol-3-yl]methyl]-2,3,4,9-tetrahydro-1H-carbazol-1-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H24N4O
assistant