You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[2-(4-tert-butylphenyl)-2-hydroxyethyl]-3-ethyl-2-[(4-ethyl-1,2,4-triazol-3-yl)methyl]guanidine;hydroiodide into molecular formula.
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C20H33IN6O
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