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 2-[3-(5,6-dimethylbenzimidazol-1-yl)-2-hydroxypropyl]sulfanyl-3-(3-hydroxypropyl)quinazolin-4-one is given. What is its corresponding molecular formula?
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C23H26N4O3S
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