You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[N-ethyl-4-fluoro-2-[(1S)-1-hydroxyethyl]-5-methylanilino]-N-propan-2-ylacetamide by IUPAC nomenclature, provide its molecular formula.
user
C16H25FN2O2
assistant