You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[1-(cyclopropanecarbonyl)-3-[(6-methyl-1H-benzimidazol-2-yl)methyl]piperidin-4-yl]acetic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H25N3O3
assistant