You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[3-[(2,4-dichlorophenyl)methyl]-1,2,4-oxadiazol-5-yl]-N-methylpropan-1-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H15Cl2N3O
assistant