Tetrahydropalmatine (THP) is an alkaloid found in several different plant species, mainly in the Corydalis genus (Yan Hu Suo), but also in other plants such as Stephania rotunda.

6-Chloropurine riboside is a chemical compound.

22393-62-0_peak 2 exhibits some aspects of the antiestrogenic activity and other actions that may be connected to the estrogenic properties.