You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-ethyl-2-[[3-(2-methoxyethylsulfamoyl)phenyl]methyl]-3-(2-methyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-8-yl)guanidine;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C20H32IN7O3S
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