You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 4-[2-[(4-carbamimidoylphenyl)methyl]-5-[formyl-(1-methylcyclohexyl)amino]benzimidazol-1-yl]butanoate;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H38ClN5O3
assistant