Polygonum multiflorum Root
DEFINITION
The article consists of the dried root of Polygonum multiflorum Thunb. (Family Polygonaceae) collected in autumn or winter. It contains NLT 1.5% of 2,3,5,4'-tetrahydroxystilbene-2-O- β-d-glucoside (C20H22O9); NLT 0.1% of total anthraquinones, calculated as the sum of emodin-8-O-β-d-glucoside (C21H20O10), physcion-8-O-β-d-glucoside (C22H22O10), emodin (C15H10O5), and physcion (C16H12O5); and NLT 0.07% of anthraquinone glycosides, calculated as the sum of emodin-8-O-β-...