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 3-benzyl-N-[2-(5-chloro-2,3-dihydro-1,4-benzodioxin-7-yl)ethyl]-4-oxophthalazine-1-carboxamide .
user
C26H22ClN3O4
assistant