You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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What is the molecular formula of the compound with this IUPAC name (3S,4S,4aS,7S,7aR)-4-bromo-3-methoxy-4,7-dimethyl-3,4a,5,6,7,7a-hexahydro-1H-cyclopenta[c]pyran ?
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C11H19BrO2
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