You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 1-(3,4-dimethoxyphenyl)-2-methyl-3-[2-(2-methylbenzimidazol-1-yl)ethyl]guanidine;hydroiodide using the IUPAC nomenclature.
user
C20H26IN5O2
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