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Updated: Apr 26, 2026

Preparation of Gynura bicolor DC samples for High-Resolution Tandem Mass Spectrometry
Published on: February 2, 2024
[Study on chemical constituents from leaf of Bombax ceiba (II)]
Objective:
To study the chemical constituents from the leaf of Bombax ceiba.
Methods:
The compounds were isolated and purified with silica gel and Sephadex LH-20 column chromatography. Their structures were determined on the basis of physicochemical properties and spectroscopic analysis.
Results:
Eleven compounds were isolated and identified as taraxeryl acetate (1), squalene (2), taraxerone (3), beta-sitosterol palmitate (4), taraxerol (5), 4-methyl stigmast-7-en-3-ol (6), 1H-indole-3-carboxylic acid (7), 6-O-palmitoylsitosteryl-D-glucoside (8), 12beta-hydroxyl-pregnane-4, 16-diene-3, 20-dione (9), loliolide (10) and 5-(hydroxymethyl) furfural (11).
Conclusion:
All the compounds are isolated from this genus for the first time.
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