You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-methoxyethyl 4-amino-6-methyl-1-pentylpyrazolo[3,4-b]pyridine-5-carboxylate;hydrochloride by IUPAC nomenclature, provide its molecular formula.
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C16H25ClN4O3
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