You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
O-ethyl 4-(3,4-dimethoxyphenyl)-6,7-dimethoxy-2-[(1-methylimidazol-2-yl)methyl]quinoline-3-carbothioate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H29N3O5S
assistant