You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-[3-[4-(dimethylamino)phenyl]-2-phenyl-3,4-dihydropyrazol-5-yl]-4-hydroxy-1-methylquinolin-2-one ?
user
C27H26N4O2
assistant