You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[(3-cyclohexyl-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazol-6-yl)methyl]propan-1-amine into molecular formula.
user
C13H21N5S
assistant