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system
Provide the molecular formula for the IUPAC named substance [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-(phosphonooxymethyl)oxolan-3-yl] (2S)-2-amino-5-(diaminomethylideneamino)pentanoate .
user
C16H26N9O8P
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