Objective: To study the chemical constituents of the leaves of Cassia angustifolia Vahl.
Methods: Solvents extraction and various chromatographic methods were applied to separate and purify its constituents. The structures were elucidated on the basis of chemical evidence and spectral analysis.
Results: Six compounds were obtained and identified as cholesterol (I), kampferol-3-rutinoside (II), calyxanthone (III), 3-methoxy-4-hydroxy-benzoic acid (IV), p-dimethylaminobenzaldehyde (V), 3,4-dihydroxybenzoic acid (VI).
Conclusion: Six compounds ( I -VI) are obtained from this plant for the first time.
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