You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-(2,2,3,3,4,4,5,5,5-nonafluoropentanoylamino)-4,5,6,7,8,9-hexahydrocycloocta[b]thiophene-3-carboxamide into molecular formula.
user
C16H15F9N2O2S
assistant