You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (7R,8aS)-7-methyl-7-morpholin-4-ium-4-yl-3,6-dioxido-5,8-dihydro-4H-pyrrolo[2,3-g][2,1,3]benzoxadiazole-3,6-diium-8a-ol into molecular formula.
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C13H19N4O5+
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