You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[(4-methyl-1,3-thiazol-5-yl)methyl]-4-propan-2-yl-1H-imidazole-2-thione by IUPAC nomenclature, provide its molecular formula.
user
C11H15N3S2
assistant