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What is the molecular formula of the compound with this IUPAC name (7R,11S,12E)-8-ethyl-3-methoxy-7,11-dimethyl-17,21-dioxa-5,8,10,24,27,29-hexazatetracyclo[20.6.1.12,6.023,27]triaconta-1(28),2(30),3,5,12,22(29),23,25-octaen-9-one ?
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C27H36N6O4
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