You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[5-(oxolan-2-ylmethylamino)-1,3,4-thiadiazol-2-yl]sulfanyl]-1-(4-pyrrolidin-1-ylsulfonylphenyl)ethanone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24N4O4S3
assistant