2,3-Dihydro-2-methyl-7-benzofurancarboxylic acid 3-Methyl-1,3-dihydroisobenzofuran-1-carboxylic acid 31457-03-1 5-18-06-00391 (Beilstein Handbook Reference) 7-Benzofurancarboxylic acid, 2,3-dihydro-2-methyl- BRN 0163414