You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 6-[2-hydroxy-2-(2-methoxypyrimidin-5-yl)ethyl]-5-(3-phenylphenyl)pyridin-3-ol by IUPAC nomenclature, provide its molecular formula.
user
C24H21N3O3
assistant