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 1-[3-(2,6-dioxopiperidin-3-yl)-4-oxo-1,2,3-benzotriazin-6-yl]azetidine-3-carboxylic acid is given. What is its corresponding molecular formula?
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C16H15N5O5
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