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What is the molecular formula of the molecule 2-[8-[(4aS,6S,8aR)-6-amino-8a-(hydroxymethyl)-1,3,4,4a,5,6,7,8-octahydroisoquinolin-2-yl]-2-methoxy-1,5-naphthyridin-4-yl]ethanol ?
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C21H30N4O3
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