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What is the molecular formula of the molecule 2-[(1-hydroxy-17-oxo-7-propan-2-yl-6,10,16-trioxaheptacyclo[11.7.0.02,4.02,9.05,7.09,11.014,18]icos-14(18)-en-8-yl)oxycarbonylamino]acetic acid ?
user
C23H27NO9
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