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 3-tert-butyl-2-methanidyl-1,3-diazaspiro[4.4]non-1-en-4-one;vanadium is given. What is its corresponding molecular formula?
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C12H19N2OV4-
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