6-HYDROXY-7,8,9,10-TETRAHYDRO-6H-[1,2,5]OXADIAZOLO[4,3-C]CARBAZOL-3-IUM-3-OLATE;6-HYDROXY-7,8,9,10-TETRAHYDROINDOLO[2,3-E]BENZOFURAZAN-3-OXIDE;6-Hydroxy-7,8,9,10-tetrahydroindolo[3,2-e]benzofurazan-3-oxide
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