You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(4-methyl-1,2,4-triazol-3-yl)sulfonyl]-1-[4-(trifluoromethyl)phenyl]sulfonylpiperidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H17F3N4O4S2
assistant