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system
Provide the molecular formula for the IUPAC named substance N-[9-[(2R,3R,4R,5S)-3-[tert-butyl(dimethyl)silyl]oxy-5-[[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxymethyl]-4-[[2-cyanoethoxy-[[(2S,4R,5R)-4-methyl-5-[2-(3-methyl-2-oxobutyl)-6-oxo-1H-purin-9-yl]-3-(tritylamino)oxolan-2-yl]methoxy]phosphoryl]amino]oxolan-2-yl]purin-6-yl]benzamide .
user
C70H88N14O11P2Si
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