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 (4R,7aR,12bS)-4a,9-dihydroxy-3-methyl-2,4,7a,13-tetrahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7-one;sulfuric acid is given. What is its corresponding molecular formula?
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C17H19NO8S
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