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What is the molecular formula of the molecule identified by (1S,3E)-3-[(2E)-2-[(7aR)-1-[(E,2R,5S)-5-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol ?
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C28H44O2
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