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system
Provide the molecular formula for the IUPAC named substance [20-methoxy-10-(7H-purin-6-yl)-18-oxa-3,6,10,15-tetrazatricyclo[17.3.1.02,6]tricosa-1(23),2,4,19,21-pentaen-15-yl]-pyridin-2-ylmethanone .
user
C30H33N9O3
assistant