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system
Provide the molecular formula for the IUPAC named substance 2-(4-hydroxy-3,5-dimethoxyphenyl)-6,13,15-trioxa-2-azatetracyclo[8.7.0.03,8.012,16]heptadeca-1(17),3(8),10,12(16)-tetraene-7,9-dione .
user
C21H17NO8
assistant