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Can you give the molecular formula of the molecule (3S,4R,4aS)-4-ethenyl-3-[(2R,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,4a,5,6-tetrahydro-3H-pyrano[3,4-c]pyran-8-one ?
user
C16H22O9
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