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What is the molecular formula of the compound with this IUPAC name diiodonickel;9,20-dimethoxy-2,13-dioxa-5,16-diazatricyclo[16.4.0.07,12]docosa-1(18),5,7(12),8,10,16,19,21-octaene ?
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C20H22I2N2NiO4
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