You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 3-(cyclopropanecarbonyl)-2-(4-ethoxy-3-methoxyphenyl)-4-hydroxy-1-(1,3,4-thiadiazol-2-yl)-2H-pyrrol-5-one .
user
C19H19N3O5S
assistant