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What is the molecular formula of the molecule identified by 2-[2-(2,3-dihydro-1-benzofuran-5-yl)ethyl]-3-ethyl-1-[[2-(1-methoxyethyl)-1,3-thiazol-4-yl]methyl]-1-methylguanidine;hydroiodide ?
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C21H31IN4O2S
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