Table 9.

Benzopyranoids isolated from genus Urtica.

Sr.	Name	Chemical structure
1.	6, 6′, 7, 7′-Tetrahy-droxy-[8, 8′-bi-2H-1-benzopyran]-2, 2′-dione; Tetra-Me ether
2.	7, 7′-dimethoxy-6, 6′-biscoumarin
3.	Scopolin
4.	6, 6′, 7, 7′-Tetrahydroxy-8,8′-bicoumarin; 6, 6′-Di-Me ether
5.	Scoparone
6.	Scopoletin