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system
What is the molecular formula of the molecule identified by (1S,2S,4S,5'R,6R,7S,8R,9S,12S,13R,15R,18R,19S)-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-15,16,18,19-tetrol ?
user
C27H44O6
assistant