You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by dimethyl 4-[3-[[(E)-3-hydroxy-2-(2-methoxyethoxycarbonyl)but-2-enylidene]amino]phenyl]-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate ?
user
C25H30N2O8
assistant