You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named ethyl 2-[4,5-dichloro-2-(2,6-difluorobenzoyl)imino-1,3-benzothiazol-3-yl]acetate is given. What is its corresponding molecular formula?
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C18H12Cl2F2N2O3S
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