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What is the molecular formula of the compound with this IUPAC name 6-methyl-3,13,21-triazapentacyclo[11.8.0.02,10.04,9.015,20]henicosa-1(21),2(10),4(9),5,7,15,17,19-octaen-14-one ?
user
C19H15N3O
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