1,3-Dioxo-2-(m-tolyl)indan-5-carboxylic acid 1H-Indene-5-carboxylic acid, 2,3-dihydro-1,3-dioxo-2-(3-methylphenyl)- 55916-23-9 Indan-5-carboxylic acid, 1,3-dioxo-2-(m-tolyl)-