You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named N-(2-bromophenyl)-1-ethyl-6-thiophen-2-ylpyrazolo[3,4-b]pyridine-4-carboxamide is given. What is its corresponding molecular formula?
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C19H15BrN4OS
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