β-Endorphin (1-27) (human) is an opioid antagonist that binds μ-, δ-, and κ-opioid receptors with Kis of 5.31, 6.17, and 39.82 nM, respectively. β-Endorphin (1-27) (human) inhibits β-Endorphin-induced and etorphine-induced analgesia.

TLR4 agonist. Promotes NF-κB nuclear translocation and induces inflammatory cytokine secretion in RAW264.7 macrophages in vitro. Acts as an adjuvant in vivo; enhances X-15 specific antibody serum concentrations, when administered with X-15-KLH in mice.

IRG1-IN-1, an itaconic acid derivative, inhibits Immune Response Gene 1 (IRG1) activity and is suitable for cancer, inflammation, and autoimmune disease research.