You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [1-(aminomethyl)-6-chloro-1,3,4,9-tetrahydropyrido[3,4-b]indol-2-yl]-(3-chlorophenyl)methanone ?
user
C19H17Cl2N3O
assistant