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 11—
USP Chlorogenic Acid RS.
USP Powdered Echinacea angustifolia Extract RS.

Botanic characteristics— Powdered Echinacea angustifolia is 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 isobutylamides under Echinacea angustifolia.

Topic/Question	Contact	Expert Committee
Monograph	Maged H. Sharaf, Ph.D. Senior Scientist 1-301-816-8318	(DSB05) Dietary Supplements - Botanicals
Reference Standards	Lili Wang, Technical Services Scientist 1-301-816-8129 RSTech@usp.org

USP32–NF27 Page 995

POWDERED ECHINACEA ANGUSTIFOLIA

Chromatographic columns text is not derived from, and not part of, USP 32 or NF 27.