You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(4-methoxyphenyl)-[(5S)-5-methyl-2-(3-methylphenyl)imino-1,3-thiazolidin-3-yl]methanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H20N2O2S
assistant