Extracted from silver birch bark, betulin and betulinic acid, which
are medicinal pentacyclic triterpene, has been investigated with
the antitumor activity. Betulin, betulinic acid and many of their
derivatives exhibit great promise as bioactive agents for the
treatment of HIV. It is significant to study the pharmaceutical
activities of betulin, betulinic acid and their derivatives.
Brown to White Microcrystaline Powder