You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2-chloro-N-(2-methyl-6-propan-2-ylphenyl)-5-morpholin-4-ylsulfonylbenzamide is given. What is its corresponding molecular formula?
user
C21H25ClN2O4S
assistant