Keywords: 1H-indene-1,3(2H)-dione 200.svg validSVG Structure of 1H-indene-1 3 2H -dione Own 2014-03-26 Emeldir <span class signature-talk >talk</span> Chemical structure verified https //upload wikimedia org/wikipedia/commons/2/2a/1H-indene-1 2C3 282H 29-dione_200 svg 1S/C9H6O2/c10-8-5-9 11 7-4-2-1-3-6 7 8/h1-4H 5H2 UHKAJLSKXBADFT-UHFFFAOYSA-N 606-23-5 PD-chem Indandione |