You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-(2-aminobenzimidazol-1-yl)-N-(4-bromo-2,6-dichloro-3,5-dimethoxyphenyl)thieno[3,2-d]pyrimidine-7-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C22H15BrCl2N6O3S
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