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 6-[[3-amino-4-(methylaminosulfanyl)phenyl]methyl]-3-[(3R)-3-hydroxyoxan-4-yl]benzo[h]quinazolin-4-one into molecular formula.
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C25H26N4O3S
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