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Updated: Aug 16, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Studies on the chemical constituents in herb of Mentha haplocalyx]
Ying Liu1, Yuan-Hu Zhang, Ren-Bing Shi
1School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
Objective:
To study the chemical constituents of Mentha haplocalyx.
Method:
The chemical constituents were isolated and purified with column chromatography and the structures were elucidated by spectral analysis.
Result:
Nine compounds were obtained and identified as emodin (I), chrysophanol (II), physcione (II), benzoic acid (IV), trans-cinnamic acid (V), beta-sitosterol (VI), aloe-emodin (VII), ursolic acid (VIII) and daucosterol (IX).
Conclusion:
Compounds I, II, III, V, VII were first isolated from M. haplocalyx.
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