You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-methyl-5-[4-(4-methylanilino)phthalazin-1-yl]-N-(pyridin-3-ylmethyl)benzenesulfonamide using the IUPAC nomenclature.
user
C28H25N5O2S
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