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system
What is the molecular formula of the molecule 19-oxa-8,11,12-triaza-5,30-diazonianonacyclo[18.10.1.01,5.02,18.03,15.04,8.09,14.024,31.025,30]hentriaconta-2(18),3(15),4,6,9,11,13,16,20,22,24(31),25,27,29-tetradecaene ?
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C25H13N5O+2
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