You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name methyl 2-[[2-(N-methylsulfonyl-3-nitroanilino)acetyl]amino]-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carboxylate into its molecular formula.
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C18H19N3O7S2
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