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 4-chloro-2-(3-chloro-4-methylphenyl)-5-[[2-methoxy-1-(5-methylfuran-2-yl)ethyl]amino]pyridazin-3-one .
user
C19H19Cl2N3O3
assistant