[A new fatty ketone of Radix Polygoni Multiflori Preparata]

Investigating the chemical constituents of Radix Polygoni Multiflori Preparata.

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.

Two compounds were isolated and identified as 1,2-dihydroxynonadecone-3(I) and gallic acid(II).

Compound I is a new compound.