You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-(2,6-dioxopiperidin-3-yl)-1-oxo-7-(trifluoromethyl)-3H-isoindole-5-carbonitrile by IUPAC nomenclature, provide its molecular formula.
user
C15H10F3N3O3
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