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 3-(5-chloro-2-hydroxyphenyl)-4-(4-ethylphenyl)-5-[(4-fluorophenyl)methyl]-1,4-dihydropyrrolo[3,4-c]pyrazol-6-one ?
user
C26H21ClFN3O2
assistant