Related Experiment Video
Updated: Feb 6, 2026

Flavonoid Content During the Growth and Floral Development of Calendula officinalis L.
Published on: June 27, 2025
[Study on Flavanoids Constituents of Swertia binchuanensis]
Objective:
To study the chemical constituents of Swertia binchuanensis.
Methods:
The constituents were separated and purifyed by conventional methods. Their structures were identified on the basis of spectral analysis such as 1H-NMR,13C-NMR.
Results:
Seven compounds were isolated and identified as 1, 2, 3, 4-tetrahydro-1, 4, 8-trihydroxy-6-methoxyxanhone( Ⅰ), erythrocentaurin( Ⅱ),1-O-β-D-glucopyranosyl-1, 2, 3, 4-tetrahydro-4, 8-dihydroxy-6-methoxyxanthone( Ⅲ), maslinic acid( Ⅳ),1-hydroxy-3, 7-dimethoxyxanthone( Ⅴ),1, 8-dihydroxy-3, 5-dimethoxyxanthone( Ⅵ),1, 7-dihydroxy-3, 4, 8-termethoxyxanthone( Ⅶ).
Conclusion:
All compounds were isolated from Swertia binchuanensis for the first time.
More Related Videos
Related Concept Videos
Case Studies
Imaging Studies I: Kidney, Ureter, and Bladder Studies
Longitudinal Studies
Observational Studies
There are three types of observational studies – Prospective, retrospective, and cross-sectional.
Prospective Study
Prospective studies, also known as longitudinal or cohort studies, are carried out by collecting future data from groups sharing similar characteristics. One...
Studying the Cytoskeleton
Bioavailability Study Design: Single Versus Multiple Dose Studies

