You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4S,4aS,5aR,12aR)-8-[(2,2-difluoroethylamino)methyl]-4,7-bis(dimethylamino)-1,10,11,12a-tetrahydroxy-3,12-dioxo-4a,5,5a,6-tetrahydro-4H-tetracene-2-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H32F2N4O7
assistant