| Compound | Description |
|---|
| hydronium ion | |
| 3,7-dimethoxy-5,3',4'-trihydroxyflavone | isolated from Veronia eremophila; structure given in first source |
| rhamnetin | aglycone of xanthorhamnin; from Rhamnus |
| 3,3'-di-o-methylquercetin | affects isolated smooth muscles |
| ombuine | from rhizome of Alpinia tonkinensis |
| rhamnazin | has both antiangiogenic and antineoplastic activities |
| s-adenosylmethionine | Physiologic methyl radical donor involved in enzymatic transmethylation reactions and present in all living organisms. It possesses anti-inflammatory activity and has been used in treatment of chronic liver disease. (From Merck, 11th ed) |
| 3-methylquercetin | |