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 4-N-(2,4-dimethoxy-3-methylphenyl)-2-N-(3,4-dimethoxy-5-methylphenyl)-5-fluoropyrimidine-2,4-diamine ?
user
C22H25FN4O4
assistant