Min. Order Reference FOB Price
1 kg US$100.00-200.00 / kg
Product Description
Description Betulin(lup-20(29)-ene-3β,28-diol) is a rich natural triterpene. It is usually isolated from the bark of birch trees and accounts for 30% of the dry weight of the extract. Chemically, birch brain is a triterpenoid compound with a lupin structure. It has a five-ring structure and a ...