You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-hydroxy-3-phenoxazin-10-yl-5-[[4-(trifluoromethoxy)phenyl]sulfonylamino]piperidine-1-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C25H21F3N3O7S-
assistant