You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(5-chloro-3,4-dimethyl-1,3-benzothiazol-2-ylidene)-1-thiophen-2-ylsulfonylpiperidine-4-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H20ClN3O3S3
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