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system
What is the molecular formula of the molecule (7R,9S,13E,16S)-4,4-bis[[tert-butyl(dimethyl)silyl]oxy]-16-(1,2-dimethylbenzimidazol-5-yl)-5,5,7,9-tetramethyl-1-oxacyclohexadec-13-ene-2,6-dione ?
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C40H68N2O5Si2
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