You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-nitrophenyl)-2-[[5-(prop-2-enylamino)-1,3,4-thiadiazol-2-yl]sulfanyl]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C14H15N5O3S2
assistant