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What is the molecular formula of the molecule identified by [(2S,3aR,5S,6S,7R,7aR)-2-methoxy-2,5-dimethyl-7-phenylmethoxy-5,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-b]pyran-6-yl] acetate ?
user
C18H24O7
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