You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(2-methylpropyl)-6-(5-sulfanylidene-1,2-dihydro-1,2,4-triazol-3-yl)pyridazin-3-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C10H13N5OS
assistant