Packaging and storage— Preserve in well-closed,light-resistant containers.

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

USP Reference standards á11ñ— USP Chlorogenic Acid RS.USP Powdered Echinacea angustifolia Extract RS.

Botanic characteristics— Powdered Echinacea angustifoliais a brown powder with a slight aromatic odor and a sweet taste that quickly becomes bitter,leaving a tingling sensation on the tongue.Under a microscope,the following characteristics are observed:thin-walled polygonal cork cells with red-brown contents;lignified reticulate vessels;abundant stone cells of various shapes;fragments of oleoresin canals with reddish brown contents;and abundant thin-walled parenchyma with spherocrystalline masses of inulin.

Other requirements— It meets the requirements of the tests for Identification,Loss on drying,Total ash,Acid-insoluble ash,Pesticide residues,Heavy metals,Content of total phenols,and Content of dodecatetraenoic acid isobutylamidesunder Echinacea angustifolia.

Expert Committee:(DSB)Dietary Supplements:Botanicals

USP28–NF23Page 2077

Phone Number:1-301-816-8343