GLP-2(3-33), generated naturally by dipeptidylpeptidase IV (DPPIV), acts as a partial agonist on GLP-2 receptor (EC50=5.8 nM).

Nitrobenzylthioinosine is an ENT1 transporter inhibitor that binds to ENT1 transporter with high affinity. Nitrobenzylthioinosine is a photoaffinity probe for adenosine uptake sites in brain. Nitrobenzylthioinosine can cross the blood-brain barrier.

Cinnabarinic acid is a specific orthosteric agonist of mGlu4 by interacting with residues of the glutamate binding pocket of mGlu4, has no activity at other mGlu receptors. Cinnabarinic acid is an endogenous metabolite of the kynurenine pathway of tryptophan. Cinnabarinic acid induces cell apoptosis.

2-Palmitoylglycerol (2-Palm-Gl), an congener of 2-arachidonoylglycerol (2-AG), is a modest cannabinoid receptor CB1 agonist. 2-Palmitoylglycerol also may be an endogenous ligand for GPR119.

L-Cysteinesulfinic acid monohydrate is a potent agonist at several rat metabotropic glutamate receptors (mGluRs) with pEC50s of 3.92, 4.6, 3.9, 2.7, 4.0, and 3.94 for mGluR1, mGluR5, mGluR2, mGluR4, mGluR6, and mGluR8, respectively.

Propionylpromazine hydrochloride (Propiopromazine hydrochloride), a dopamine receptor D2 (DRD2) antagonist, can be used in the research of Parkinson disease.

SB-616234-A is a selective and orally bioavailable 5-HT1B receptor antagonist, with anxiolytic and antidepressant activity.

SCH442416 is a potent, selective and brain-penetrant antagonist of adenosine A2A receptor (A2AR), with Kis of 0.048 and 0.5 nM for human and rat A2AR respectively. SCH442416 displays more than 23000-fold selectivity over A1R, A2BR, and A3R (Ki=1111, 10000, and 10000 nM, respectively). SCH442416 can be used for imaging of adenosine A2A receptors in rat and primate brain.

Lys-[Des-Arg9]Bradykinin TFA, a naturally occurring kinin, is a potent and highly selective bradykinin B1 receptor agonist with a Ki of 0.12 nM, 1.7 nM and 0.23 nM for human, mouse and rabbit B1 receptors, respectively. Lys-[Des-Arg9]Bradykinin TFA has lowy activity on B2 receptors.

[Hyp3]-Bradykinin, naturally occurring peptide hormone, is a bradykinin receptor agonist. [Hyp3]-Bradykinin interacts with B2-bradykinin receptors and stimulates inositol phosphate production in cultured human fibroblasts.

BQ-123 TFA is a potent and selective endothelin A (ETA) receptor antagonist with an IC50 of 7.3 nM and a Ki of 25 nM. BQ-123 TFA inhibits endothelin-1-mediated proliferation of human pulmonary artery smooth muscle cells and lowers blood pressure in different rat models of hypertension.

Lecirelin is a synthetic GnRH (gonadotropin releasing hormone) analogue which shows a great efficacy in the treatment of bovine ovarian follicular cysts.

Betazole (Ametazole), a pyrazole analogue of histamine, is an orally active H2 receptor agonist. Betazole induces gastric acid secretion, and causes an immediate and significant increase in common bile duct pressure. Betazole has been used as a diagnostic agent known as histalog, for investigating gastric acid secretory capacity.

Pomaglumetad methionil hydrochloride (LY2140023 hydrochloride) is an orally active, methionine prodrug of the selective mGlu2/3 receptor agonist LY404039. Pomaglumetad methionil hydrochloride has the potential for schizophrenia research.

Neurokinin A TFA (Substance K TFA), a peptide neurotransmitter of the tachykinin family, acts via the NK-2 receptor. Neurokinin A acts as a major mediator in human airway and gastrointestinal tissues.

Hemokinin 1 (mouse) is a selective agonist of neurokinin-1 receptor, with Ki of 0.175 nM and 560 nM for human NK1 receptor and human NK2 receptor, respectively.

[D-Trp11]-Neurotensin, an analogue of Neurotensin (NT), is a selective antagonist of NT in perfused rat hearts but behaves as a full agonist in guinea pig atria and rat stomach strips. [D-Trp11]-Neurotensin can inhibit NT-induced hypotension.

EST73502 is a selective, orally active and blood-brain barrier (BBB) penetrant dual μ-opioid receptor (MOR) agonist and σ1 receptor (σ1R) antagonist, with Kis of 64 nM and 118 nM for MOR and σ1R, respectively. EST73502 has antinociceptive activity.

Cebranopadol ((1α,4α)stereoisomer) is a stereoisomer of cebranopadol. Cebranopadol is a potent agonist activity on ORL-1.

GSK726701A is a novel prostaglandin E2 receptor 4 (EP4) partial agonist with a pEC50 of 7.4.

EST64454 hydrochloride is a selective and orally active sigma-1 receptor antagonist with a Ki of 22 nM. EST64454 hydrochloride has the potential for the research of the pain.

EST73502 hydrochloride is a selective, orally active and blood-brain barrier (BBB) penetrant dual μ-opioid receptor (MOR) agonist and σ1 receptor (σ1R) antagonist, with Kis of 64 nM and 118 nM for MOR and σ1R, respectively. EST73502 hydrochloride has antinociceptive activity.