You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-2-cyclohexylimino-5-[(4-prop-2-ynoxyphenyl)methylidene]-1,3-thiazolidin-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H20N2O2S
assistant