You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[[7-chloro-1-(2-methoxy-4-nitrobenzoyl)-2,3,4,5-tetrahydro-1-benzazepin-2-yl]oxy]ethyl 4-methylbenzenesulfonate .
user
C27H27ClN2O8S
assistant