You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-fluoro-3-(trifluoromethyl)phenyl]-8-[2-[4-(3-hydroxypropoxy)-2,6-dimethylphenyl]ethylsulfonyl]-1,3,8-triazaspiro[4.5]dec-1-en-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H31F4N3O5S
assistant