You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,2R)-N-[3-(1,3-dithian-2-yl)phenyl]-2-pyridin-3-ylcyclopropane-1-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H20N2OS2
assistant