You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[3-[5,6-bis(4-fluoroanilino)-1,3-dioxo-4H-isoindol-5-yl]propyl]-3-ethylurea into its molecular formula.
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C26H27F2N5O3
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