You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule ethyl 4-[[1-[(3-fluorophenyl)methyl]-2,2,4-trioxothieno[3,2-c]thiazin-3-ylidene]methylamino]benzoate into molecular formula.
user
C23H19FN2O5S2
assistant