You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[7-[2-[(3R,4S)-4-azidopyrrolidin-3-yl]oxy-5-chloro-3-methylphenyl]thieno[3,2-b]pyridin-2-yl]methanol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H18ClN5O2S
assistant