2H-1-Benzopyran-2-one, 3-(o-ethylphenyl)-4-hydroxy- 3-(o-Ethylphenyl)-4-hydroxy-2H-1-benzopyran-2-one 3-(o-Ethylphenyl)-4-hydroxycoumarin 5-18-02-00329 (Beilstein Handbook Reference) 73791-14-7 BRN 1289090 COUMARIN, 3-(o-ETHYLPHENYL)-4-HYDROXY-