[pSer2, pSer5, pSer7]-CTD is a substrate for CDK7(cyclin-dependent protein kinase), a phosphorylated polypeptide at ser2, ser5, and ser7 of RNA polymerase II carboxyl terminus (CTD).

BU 224 hydrochloride is a selective imidazoline I(2) binding site ligand and has antinociceptive and antidepressant-like activities.

(R)-tert-OMe-byakangelicin is a kind of furanocoumarin, which has inhibitory activity to liver drug metabolizing enzyme (DME) activity. (R)-tert-OMe-byakangelicin can be isolated from immature fruits of Angelica sinensis.