Related Experiment Video
Updated: Apr 15, 2026

Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry
Published on: February 2, 2024
[Chemical constituents of Scrophularia ningpoensis root]
Objective:
To investigate the chemical constituents from Scrophularia ningpoensis root.
Methods:
The compounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. The structures of these compounds were elucidated on the basis of spectroscopic analysis.
Results:
Eleven compounds were isolated and identified as vanillin (1), eugenol (2), isoeugenol methyl ether(3), ferulic acid(4), benzoic acid(5), syringic acid(6) ,rhamnopyranosyl vanilloyl(7), syringic acid-4-O-alpha-L-rhamnopyr-anoside(8), beta-sitosterol(9), adenosine (10) and dibutyl phthalate(11).
Conclusion:
Compound 1-3 and 6-8 are obtained from this plant for the first time.
