You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-[(2-chlorophenyl)methyl]-6-hydroxy-4-methyl-2-oxo-5-[2-(4-propan-2-ylphenoxy)propanoyl]pyridine-3-carbonitrile is given. What is its corresponding molecular formula?
user
C26H25ClN2O4
assistant