Birch bark Extract (Betulin & Betulinic acid)

Skyherb has developed a method of isolating betulin and betulinic acid from birch bark and has successfully been producing commercial quantities for several years. DESCRIPTION: Sources: Betula platyphylla Used Part: Birch bark Active Ingredients: Betulin, Betulinic acid Specifications: -Betulin (CAS NO.: 473-98-3): 70%, 90%, 98%, tested by HPLC -Betulinic acid (CAS NO.: 472-15-1): 50%, 90%, 98%； tested by HPLC Please feel free to contact us for more details: sales[at]skyherb dot cn