You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-(2-chloro-6-fluorophenyl)-N-(furan-2-ylmethyl)-N-(thiophen-2-ylmethyl)acetamide is given. What is its corresponding molecular formula?
user
C18H15ClFNO2S
assistant