2H-1-Benzopyran-2-one, 6,7-dihydroxy- 305-01-1 6,7-Dihydroxycoumarin Aesculetin Cichorigenin Cichoriin aglucon Coumarin, 6,7-dihydroxy- ESCULETIN Esculatin Esculetol Esculin aglucon NSC26428