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What is the molecular formula of the molecule 14-chloro-4-(3,5-dibromopyridin-4-yl)-8-oxa-3,5-diazatetracyclo[10.4.0.02,6.07,11]hexadeca-1(12),2(6),3,7(11),9,13,15-heptaene ?
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C18H8Br2ClN3O
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