Packaging and storage— Store in tight containers,protected from light and moisture.

Labeling— The label states the Latin binomial and,following the official name,the parts of the plant source from which the article was derived.

USP Reference standards á11ñ— USP Hyperoside RS.USP Rutin RS.

Botanic characteristics— Buff to greenish-brown powder with an aromatic and balsamic odor;elongated and polygonal epidermal cells with thickened and beaded anticlinal walls,some accompanied by paracytic (occasionally anomocytic)stomata;fragments of leaf and sepal with schizogenous oil and pigment glands;narrow,thin-walled,elongated epidermal cells with straight and wavy anticlinal walls from petal;narrow,lignified vessels with annular or reticulate thickening;tracheids and tracheidal vessels with lignified,pitted thickening;thick-walled lignified fibers with tapering apices and occasional oblique pits;rectangular,lignified,pitted parenchyma;fibrous layer of antheral wall;pollen grains,between 20and 25µm in diameter,with smooth exine.

Heavy metals á231ñ: 0.002%.

Other requirements— It meets the requirements for Identification,Total ash,Water content,Foreign organic matter,Pesticide residues,Microbial enumeration,Content of hypericin and pseudohypericin,and Content of hyperforintests under St.John's Wort.

Expert Committee:(DSB)Dietary Supplements:Botanicals

USP28–NF23Page 2125

Phone Number:1-301-816-8343