You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-propan-2-yl-4-(1-thiophen-3-ylpropan-2-yl)-1H-1,2,4-triazole-5-thione is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H17N3S2
assistant