You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-[(4,5-dimethyl-1,2,4-triazol-3-yl)methyl]-3-[(1-ethylpyrrolidin-2-yl)methyl]-2-[(4-methylphenyl)methyl]guanidine;hydroiodide .
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C21H34IN7
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