You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 3-chloro-N-(3-ethoxypropyl)-6-methyl-5,5-dioxo-11H-benzo[c][2,1]benzothiazepin-11-amine .
user
C19H23ClN2O3S
assistant