You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(1-benzofuran-2-ylmethyl)-2-[(4,5-dimethyl-1,2,4-triazol-3-yl)methyl]-3-(3-methoxypropyl)-1-methylguanidine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H28N6O2
assistant