Dynorphin B (1-9) is a neuropeptide and N-terminal cleavage product of dynorphin B. The formation of dynorphin B (1-9) is blocked by N-ethylmaleimide (NEM), a non-selective inhibitor of cysteine peptidases.

[Lys3]-Bombesin is a biological active peptide. (PET (Positron Emission Tomography) imaging of [Lys3]-bombesin is able to detect gastrin-releasing peptide receptor (GRPR) positive prostate cancer. An immunoconjugate of [Lys3]-bombesin and corresponding monoclonal antibody can specifically induce (CD64)-dependent monocyte and neutrophil-mediated lysis of small cell carcinoma.)

Used in synthetic resin, also used as additive, curing agent, promoter, etc.