Objective: Investigating the chemical constituents of Radix Polygoni Multiflori Preparata.
Methods: Compounds were isolated from the CHCl3 extract with column chromatography on silica gel, and identified on the basis of spectral analysis(IR, EI-MS, 1H-NMR, 13C-NMR) and phytochemical properties.
Results: Two compounds were isolated and identified as 1,2-dihydroxynonadecone-3(I) and gallic acid(II).
Conclusion: Compound I is a new compound.