Caulophylline B is a fluorenone alkaloid isolated from the roots of Caulophyllum robustum Maxim, affords a low scavenging effect against DPPH radical[1].
[1]. Wang XL, et al. Four new fluorenone alkaloids and one new dihydroazafluoranthene alkaloid from Caulophyllum robustum Maxim. Fitoterapia. 2011 Sep;82(6):793-7.
















