You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-amino-4-[3-[(4-chlorophenyl)sulfanylmethyl]-2,5-dimethylphenyl]-1-(4-fluoro-2-nitrophenyl)-5-oxo-4,6,7,8-tetrahydroquinoline-3-carbonitrile .
user
C31H26ClFN4O3S
assistant