You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(6-methyl-1,3-benzothiazol-2-yl)-1-(thiophene-2-carbonyl)piperidine-4-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C19H19N3O2S2
assistant