betulin definition

  • noun:
    • A naturally numerous triterpene, commonly isolated from the bark of birch woods, that can be transformed into betulinic acid.
    • a phrase initially put on a substance gotten as a resin or tar by removal through the exterior bark associated with the typical European white birch (Betula alba); now referring to the substance compound (C30H50O2) having a cyclopentanophenanthrene ring system, which is the primary constituent of this extract, and which may be acquired crystalline; -- called in addition birch camphor.
    • An alkaloid (C36H60O3) acquired through the bark regarding the white birch. It crystallizes in the shape of long needles, that are fusible and volatile.

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