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 6-butan-2-yl-2,3-dimethylimidazo[2,1-b][1,3]thiazole-5-carboxylic acid is given. What is its corresponding molecular formula?
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C12H16N2O2S
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