1H-Indene-5-carboxylic acid, 2,3-dihydro-2-(3-hydroxy-2(1H)-quinolinylidene)-1,3-dioxo- 2-(3-Hydroxy-2(1H)-quinolylidene)-1,3-dioxoindan-5-carboxylic acid 6396-90-3 EINECS 229-006-3