2H-1-Benzopyran-2-one, 3-(2,3-dimethylphenyl)-4-hydroxy- 4-Hydroxy-3-(2,3-dimethylphenyl)-2H-1-benzopyran-2-one 4-Hydroxy-3-(2,3-dimethylphenyl)coumarin 73791-09-0 BRN 1289089 COUMARIN, 3-(2,3-DIMETHYLPHENYL)-4-HYDROXY-