Packaging and storage— Preserve in tight containers, protected from light and excessive heat.

Labeling— The label states the Latin binomial and, following the official name, the parts of the plant contained in the article.

USP Reference standards 11— USP Aspartic Acid RS. USP Glutamic Acid RS. USP Scopoletin RS. USP -Sitosterol RS.

Botanic characteristics— [NOTE—The test is carried out under a microscope using chloral hydrate solution.] The powder is yellowish to brownish gray, and shows several fragments of net and pitted vessels with a strongly varying diameter, usually between 50 and 150 µm. Few, if any, pitted bast fibers are present. Clearly pitted wood fibers, about 200 to 800 µm in length, and thin-walled parenchyma cells, sometimes containing compounded calcium oxalate crystals and occasionally with single crystals and fragments of cork consisting of flat-shaped, thin-walled cells, are also present.

Other requirements— It meets the requirements of the tests for Identification, Microbial enumeration, Foreign organic matter, Total ash, Pesticide residues, Content of total amino acids, Content of -sitosterol, and Content of scopoletin under Stinging Nettle.

Expert Committee : (DSB05) Dietary Supplements - Botanicals

USP29–NF24 Page 2369

Phone Number : 1-301-816-8318