You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(7-methoxyindol-1-yl)-N-[5-(methoxymethyl)-1,3,4-thiadiazol-2-yl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H18N4O3S
assistant