Related Experiment Video
Updated: May 14, 2026

Analysis of Raw and Processed Cyperi Rhizoma Samples Using Liquid Chromatography-Tandem Mass Spectrometry in Rats with Primary Dysmenorrhea
Published on: December 23, 2022
[Chemical constituents from rhizome of Daphne papyracea var. crassiuscula]
Ying Wei1, Guang-Yi Liang, Ye Wang
1Department of Pharmacy, Guiyang College of Traditional Chinese Medicine, Guiyang 550002, China. weiying1969@hotmail.com
Objective:
To study chemical constituents from rhizome of Daphne papyracea var. crassiuscula.
Method:
Ethyl acetate fraction of 75% ethanol extracts from rhizome of D. papyracea var. crassiuscula, and its strucutre was identified by spectral method.
Result:
Nine compounds were separated and identified as daphneticin (1), daphnetin (2), hydrangetin (3), daphnoretin (4), 1-4'-hydroxyphenyl-5-phenyl-2 (E)-en-1-pentanone (5), daphneolon (6), 3beta-O-acetyl-olean-12-en (7), and (+)-usnic acid (8).
Conclusion:
Compounds 1-8 were separated from D. papyracea var. crassiuscula for the first time. Compound 8 was separated from the genus for first time.
Related Concept Videos
Diphtheria
Diazonium Group Substitution: –OH and –H
