You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,5-dichloro-N-[[5-[(cyclohexylamino)methyl]-2H-triazol-4-yl]methyl]benzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H21Cl2N5O2S
assistant