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system
Provide the molecular formula for the IUPAC named substance [(2R,3R,4S,5R)-5-(6-aminopurin-9-yl)-4-[[[(2R,3R,4S,5R)-5-(6-aminopurin-9-yl)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]methoxy]-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]methoxy]-3-hydroxyoxolan-2-yl]methoxy-[[(2R,3S,4R,5R)-2-(6-aminopurin-9-yl)-4-hydroxy-5-(phosphonooxymethyl)oxolan-3-yl]oxymethyl]phosphinic acid .
user
C43H56N20O25P4
assistant