Powdered Red Clover
» Powdered Red Clover is Red Clover reduced to a powder or very fine powder. It contains not less than 0.5% of isoflavones, calculated on the dried basis as the sum of daidzein, genistein, formononetin, and biochanin A.
Packaging and storage— Preserve in well-closed, light-resistant containers, protected from moisture.
Labeling— The label states the Latin binomial and, following the official name, the part of the plant from which the article was derived.
Botanic characteristics— Brownish red to greenish red; numerous long, sharp-pointed, unicellular, nonglandular hairs with thick, nonlignified walls, the latter somewhat roughened by slight centrifugal projections; smooth, nearly spheroidal pollen grains from 20 to 48 µm in diameter; fragments of epidermis with stomata, the latter from 13 to 23 µm in length; fragments containing sclerenchyma fibers with adherent crystal fibers containing monoclinic prisms of calcium oxalate that are up to 21 µm in length.
Other requirements— It meets the requirements of the tests for Identification, Microbial enumeration, Loss on drying, Total ash, Acid-insoluble ash, Water-soluble extractives, Pesticide residues, Heavy metals, and Content of isoflavones under Red Clover.
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Maged H. Sharaf, Ph.D.
Senior Scientist
(DSB05) Dietary Supplements - Botanicals
Reference Standards Lili Wang, Technical Services Scientist
USP32–NF27 Page 984
Pharmacopeial Forum: Volume No. 28(3) Page 810
Chromatographic Column—
Chromatographic columns text is not derived from, and not part of, USP 32 or NF 27.