You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-nitro-N-[(E)-2-[(2E)-2-[(6-nitro-1,3-benzothiazol-2-yl)hydrazinylidene]ethoxy]ethylideneamino]-1,3-benzothiazol-2-amine by IUPAC nomenclature, provide its molecular formula.
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C18H14N8O5S2
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