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-[4-chloro-1-(2,2,2-trifluoroethyl)benzimidazol-2-yl]-2-oxo-3,4-dihydro-1H-quinazoline-7-carboxamide is given. What is its corresponding molecular formula?
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C18H13ClF3N5O2
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