2-(1-methylpyridin-1-ium-3-yl)-3-oxoinden-1-olate;2-(1-methylpyridin-1-ium-3-yl)-3-oxo-inden-1-olate;2-(1-methyl-3-pyridin-1-iumyl)-3-oxo-1-indenolate;3-keto-2-(1-methylpyridin-1-ium-3-yl)inden-1-olate;59804-88-5;Pyridinium, 3-(1,3-dihydro-1,3-dioxo-2H-inden-2-yl)-1-methylhydroxide, inner salt
2-(1-methylpyridin-1-ium-3-yl)-3-oxoinden-1-olate