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system
Name the molecular formula for the molecule established as 11-oxa-9-thia-6-aza-1-azoniapentacyclo[10.7.0.02,10.03,8.013,18]nonadeca-1(12),2(10),3(8),4,6,13,15,17-octaene using the IUPAC nomenclature.
user
C15H9N2OS+
assistant