You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 2-benzylsulfanyl-5-(3-methylphenyl)-3,5,7,8,9,10-hexahydropyrimido[4,5-b]quinoline-4,6-dione ?
user
C25H23N3O2S
assistant