You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 9-hydroxy-5-methyl-16-oxa-2,8-diaza-5-azoniatetracyclo[7.7.0.02,6.010,15]hexadeca-3,5,10,12,14-pentaen-7-one into its molecular formula.
user
C13H12N3O3+
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