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Flavones and their Structure activity relationship.
| Sr. No. | Flavones | C5 | C6 | C7 | C8 | C3′ | C4′ |
|---|---|---|---|---|---|---|---|
| 1. | 7,8-Dihydroxyflavone | -OH | -OH | ||||
| 2. | Amentoflavone | -OH | -OH | -C15H12O5 | -OH | ||
| 3. | Apigenin | -OH | -OH | -OH | |||
| 4. | Baicalein | -OH | -OH | -OH | |||
| 5. | Chrysin | -OH | -OH | ||||
| 6. | Luteolin | -OH | -OH | -OH | -OH | ||
| 7. | Nobiletin | -OCH3 | -OCH3 | -OCH3 | -OCH3 | -OCH3 | |
| 8. | Orientin | -OH | -OH | -C6H11O5 | -OH | -OH | |
| 9. | Vitexin | -OH | -OH | -C6H11O5 | -OH |
