Hederagenic acid (compound 2) is a kind of triterpenoid saponin. Hederagenic acid can be isolated from the roots of Kalopanax septemlobus (Thunb.) Koidz.

Angiogenin (108-122) TFA is an angiogenin peptide.Angiogenin (108-122) acts as a therapeutic agent for the prophylaxis and/or treatment of cancer, an infectious disease, a fibrotic disease, an inflammatory disease, a neurodegenerative disease, an autoimmune disease, or a heart and vascular disease.

(S,R,S)-AHPC-PEG2-NH2 dihydrochloride is a synthesized E3 ligase ligand-linker conjugate incorporating the (S,R,S)-AHPC based VHL ligand and 2-unit PEG linker.