You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N'-[2-(dimethylamino)-2-thiophen-2-ylethyl]-N-ethyl-4-pyrimidin-2-ylpiperazine-1-carboximidamide;hydroiodide into molecular formula.
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C19H30IN7S
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