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Natural Products
Polygonum multiflorum

Polygonum multiflorum is used in traditional Chinese medicine as a tonic and an anti-aging remedy. There is insufficient scientific evidence to determine its effectiveness for any treatment. Characterzation of polyphenolic compounds in the stems of P. multiflorum was conducted using HPLC, high resolution LC-MS and LC-MSn. Proanthocyanidins in particular were isolated in 4.8% yield using solvent extraction followed by Sephadex LH-20 fractionation. HPLC analysis using a diol column revealed oligomers (from dimer to nonamer) as minor components, with (epi)catechin monomeric units predominating, and oligomers with higher degree of polymerization being dominant. Thiolysis treatment of the proanthocyanidins using mercaptoacetic acid produced thioether derivatives of (epi)catechin as the major product and a mean value of the degree of polymerization of 32.6 was estimated from the ratio of terminal and extension units of the (epi)catechin. The isolated proanthocyanidins were shown to strongly inhibit α-amylase with an acarbose equivalence (AE) value of 1,954.7 µmol AE/g.

Polygonum multiflorum
Research products of Polygonum multiflorum
Catalog Product Name CAS Number Manual
CFN98834Emodin518-82-1  PDF
CFN98751Chrysophanol481-74-3  PDF
CFN98749Aloeemodin481-72-1  PDF
CFN98848Physcion521-61-9  PDF
CFN99157Rhein478-43-3  PDF
CFN98791Resveratrol501-36-0  PDF
CFN999952,3,5,4'-Tetrahydroxyl diphenylethylene-2-O-glucoside82373-94-2  PDF
CFN98995Pinostilbenoside58762-96-2  PDF
CFN99624Gallic acid149-91-7  PDF
CFN99646Catechin154-23-4  PDF
CFN99569(-)-Epigallocatechin gallate989-51-5  PDF
CFN98781Epicatechin490-46-0  PDF
CFN97549(-)-Epigallocatechin(EGC)970-74-1  PDF
CFN99571(-)-Gallocatechin gallate4233-96-9  PDF
CFN99572Emodin-8-beta-D-glucoside23313-21-5  PDF
CFN98841Tricin520-32-1  PDF
CFN98713Daucosterol474-58-8  PDF
CFN977615,7-Dihydroxychromone31721-94-5  PDF
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