Isoquercetin
![](/Images/godic/202501/21/Isoquercitin.svg1929.png")
Isoquercetin is a chemical compound. It can be isolated from mangoes and from Rheum nobile, the Noble rhubarb or Sikkim rhubarb, a giant herbaceous plant native to the Himalayas. Quercetin glycosides are also present in tea.
It is the 3-O-glucoside of quercetin.