You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[(3,6-dimethylimidazo[2,1-b][1,3]thiazol-5-yl)methyl]-1,1-dioxo-2,3-dihydrothiophen-3-amine by IUPAC nomenclature, provide its molecular formula.
user
C12H15N3O2S2
assistant