You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-benzyl-6-oxo-2,5-dihydro-1H-1,2,4-triazin-5-yl)-N-[(3-phenoxyphenyl)methylideneamino]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H23N5O3
assistant