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 2-(1-oxophthalazin-2-yl)-N-(3,3,3-trifluoro-2-piperazin-1-ylpropyl)acetamide;hydrochloride is given. What is its corresponding molecular formula?
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C17H21ClF3N5O2
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