1H-Indene-1-carboxylic acid, 2,3-dihydro-5,6-dimethoxy-3-oxo- 4-10-00-03913 (Beilstein Handbook Reference) 5,6-Dimethoxy-3-oxo-2,3-dihydro-1H-indene-1-carboxylic acid 62956-63-2 BRN 2942496