You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[3-amino-5-[2-(5-methyl-1,2,4-oxadiazol-3-yl)ethylamino]-4-methylsulfanylthiophen-2-yl]propan-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C13H18N4O2S2
assistant