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What is the molecular formula of the molecule (4S)-4-(9H-fluoren-9-ylmethoxycarbonylamino)-5-oxo-5-[[2-oxo-2-[[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]amino]ethyl]amino]pentanoic acid ?
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C28H33N3O11
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