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What is the molecular formula of the molecule (4aS,8R,8aR)-8-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-6-phenyl-4,4a,8,8a-tetrahydro-[1,3]dioxino[5,4-d][1,3,2]dioxathiine 2,2-dioxide ?
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C16H20O8S
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