You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[(2,6-dichlorophenyl)methyl]-5-[2-methoxy-4-[4-(3-methylbutanoyl)piperazin-1-yl]anilino]-3H-pyrido[3,4-d]pyridazin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C30H32Cl2N6O3
assistant