Dynorphin A (1-13) amide is an endogenous opioid peptide that antagonizes morphine-induced analgesia.

S961 TFA is A high affinity insulin receptor (IR) antagonist with IC50 for hir-a, hir-b and human insulin-like growth factor I receptor (higf-ir) at 0.048, 0.027 and 630 nM, respectively.

L-Dithiothreitol is a chiral bidentate dithiol with two stereogenic centers. It may be used in chiroptical response research.