You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[2-chloro-5-[2-[3-(dimethylamino)propoxy]-1,3-thiazol-4-yl]phenyl]-3-imino-1-[2-(methylideneamino)-1,3-oxazol-4-yl]propan-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H22ClN5O3S
assistant