You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2,3,3,4,4,4-heptafluoro-N-[(2-hydroxy-1H-indol-3-yl)imino]butanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H6F7N3O2
assistant