You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 4-[(7-bromo-3a,4,5,6,7,7a-hexahydro-1,3-benzothiazol-2-yl)amino]-2-hydroxybenzoic acid;bromide into molecular formula.
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C14H15Br2N2O3S-
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