You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 1-[4-(3-amino-7-fluoro-1H-indazol-6-yl)phenyl]-3-[2-fluoro-5-(trifluoromethyl)phenyl]urea;hydrochloride into molecular formula.
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C21H15ClF5N5O
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