You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-chloro-N-[5-[1-[2-[cyclohexyl(methyl)amino]-2-oxoethyl]benzimidazol-2-yl]pentyl]benzamide into molecular formula.
user
C28H35ClN4O2
assistant