You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-7-chloro-5-methylsulfonyl-N-propyl-3,4-dihydro-2H-1,5-benzoxazepine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H19ClN2O4S
assistant