An organic heterotricyclic compound that is chromone which is ortho-fused to a furan ring and its substituted derivatives thereof.
| Member | Definition | Role |
|---|
| 5h-furo(3,2-g)(1)benzopyran-5-one | A member of the class of furanochromones that is 5H-furo[3,2-g][1]benzopyran carrying an oxo group a position 5. | 5H-furo[3,2-g]chromen-5-one |
| khellin | A furanochrome in which the basic tricyclic skeleton is substituted at positions 4 and 9 with methoxy groups and at position 7 with a methyl group. A major constituent of the plant Ammi visnaga it is a herbal folk medicine used for various illnesses, its main effect being as a vasodilator. | khellin |
| visnagin | A furanochromone that is furo[3,2-g]chromen-5-one which is substituted at positions 4 and 7 by methoxy and methyl groups, respectively. Found in the toothpick-plant, Ammi visnaga. | visnagin |