You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[6-(4-chlorophenyl)-2-(3-methoxyphenyl)-1,2,3,4-tetrahydropyrimidin-4-yl]-6-ethoxyphenol is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H25ClN2O3
assistant