You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[[3-(2,4-dichlorophenyl)-1,2,4-oxadiazol-5-yl]methyl]piperidine-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C15H16Cl2N4O2
assistant