mt1, mt2

2-Iodomelatonin is a potent agonist of melatonin receptor 1 (MT1) with a Ki value of 28 pM, exhibiting over 5-fold selectivity for MT1 compared to MT2. It can be used to identify, characterize, and localize melatonin binding sites in the brain and peripheral tissues.

Agomelatine (L(+)-Tartaric acid) is a specific agonist of MT1 and MT2 receptors (Kis: 0.1, 0.06, 0.12, and 0.27 nM for CHO-hMT1, HEK-hMT1, CHO-hMT2, and HEK-hMT2), and Agomelatine (S-20098). L(+)-Tartaric acid also functions as a selective 5-HT2C receptor antagonist (pKis: 6.4 and 6.2 at native porcine and cloned human 5-HT2C receptors), actively supporting research into melatonergic signaling pathways, receptor-mediated regulation, and novel psychiatric therapeutics by enabling precise modulation of circadian and serotonergic systems in cellular models to improve neuropharmacological understanding and experimental reproducibility across neuroscientific and clinical translational studies.

6-Chloromelatonin is a potent melatonin receptor agonist, a 5-methoxyindole compound that competes for presynaptic melatonin receptor sites in the rabbit retina, inhibiting the calcium-dependent release of [3H]dopamine with higher metabolic stability than melatonin. Chloromelatonin competitively binds to [3H]melatonin at MT2 receptors (pKi=9.77) and may be used to study insomnia and sleep disorders associated with depression.

Agomelatine hydrochloride (S-20098 hydrochloride) is a specific MT1 and MT2 receptor agonist with Ki values of 0.1 nM for CHO-hMT1, 0.06 nM for HEK-hMT1, 0.12 nM for CHO-hMT2, and 0.27 nM for HEK-hMT2, respectively [1]. Additionally, Agomelatine hydrochloride is a selective antagonist of the 5-HT2C receptor with pKi values of 6.4 and 6.2 for native (porcine) and cloned human 5-HT2C receptors, respectively [2].

Agomelatine (Valdoxan) is structurally closely related to melatonin. Agomelatine is a potent agonist at melatonin receptors and an antagonist at serotonin-2C (5-HT2C) receptors, tested in an animal model of depression.

Ramelteon (TAK-375) is a Melatonin Receptor Agonist. The mechanism of action of ramelteon is as a Melatonin Receptor Agonist.

7-Desmethyl-3-hydroxyagomelatine is a metabolite of Agomelatine and has less activity than Agomelatine. Agomelatine is a melatonergic (MT1 and MT2) agonist and 5-HT2C antagonist.

7-Desmethyl-agomelatine, a metabolite of Agomelatine, exhibits lower activity than Agomelatine, which functions as a melatonergic (MT1 and MT2) agonist and 5-HT2C antagonist.

8-M-PDOT (AH-002) is a selective and potent melatonin MT2 receptor agonist that also inhibits MT1 receptors. 8-M-PDOT exhibits anxiolytic activity and can be used to study MT2-induced neuropathic pain.

Agomelatine D6 (S-20098 D6) is a deuterium-labeled Agomelatine. Agomelatine is a specific agonist of MT1 and MT2 receptors.

Ramelteon metabolite M-II is the primary metabolite of Ramelteon and exhibits IC50 values of 208 pM and 1470 pM for human melatonin receptors (MT1 and MT2), respectively. Ramelteon itself is a selective melatonin receptor agonist.

4-P-PDOT (4-phenyl-2- propionamidotetralin) is a potent, selective and affinity Melatonin receptor (MT2) antagonist.

Luzindole (N-0774) is a selective melatonin receptor antagonist that inhibits experimental autoimmune encephalomyelitis and exhibits antidepressant-like activity. It preferentially targets MT2 (Mel1b) over MT1 (Mel1a), with Ki values of 10.2 nM for human MT2 and 158 nM for MT1.

S26131 (N-[2-[7-[3-[8-(2-acetamidoethyl)naphthalen-2-yl]oxypropoxy]naphthalen-1-yl]ethyl]acetamide) behaves as an antagonist on MT1 and MT2 receptors with Ki of 0.5 and 112 nM respectively.

TIK-301 is a chlorinated melatonin derivative and a potent, high-affinity, and orally active melatonin MT1 and MT2 receptors agonist (Kis: 0.081 nM and 0.042 nM, respectively). TIK-301 is also a 5-HT2B/5-HT2C receptor antagonist with antidepressant action. TIK-301 has the potential for sleep disorders and other circadian rhythm disorders treatment.

UCM 608 (2-Phenylmelatonin) is an antagonist of melatonin-induced contractile responses at low concentrations and induces an increase in GDP-GTP exchange.

MT2 melatonin receptor antagonist

S22153 is an antagonist of melatonin receptor.

glycine (2-Aminoacetic acid) is a non-essential amino acid. It is found primarily in gelatin and silk fibroin and used therapeutically as a nutrient. It is also a fast inhibitory neurotransmitter.

Piromelatine is an agonist of melatonin MT1/MT2 receptors, 5-HT1A and 5-HT1D, and an antagonist of 5-HT2B.Piromelatine has antinociceptive activity with inhibitory effects on P2X3, TRPV1, and Nav1.7 channels, and can be used in studies of sleep-promoting, pain-relieving, anti-neurodegenerative, and antidepressant diseases. diseases, and can be used to improve memory deficits associated with chronic mild stress-induced lack of pleasure in rats.

Tasimelteon (BMS-214778) is a melatonin receptor agonist that is used for the treatment of non-24 hour sleep-wake disorder in blind individuals.

Melatonin receptor agonist 1 (compound 20c) is a potent agonist of the melatonin receptor (MT) with Ki values of 108 nM for MT2 and 1140 nM for MT1 [1].

DH-97 is a potent MT2 melatonin receptor antagonist (pKi value = 8.03).

Tasimelteon-d5 is intended for use as an internal standard for the quantification of tasimelteon by GC- or LC-MS. Tasimelteon is a melatonin (MT) receptor agonist. It selectively binds MT1 and MT2 receptors over a panel of 160 additional receptors and enzymes at 10 µM. Tasimelteon inhibits forskolin-induced cAMP accumulation with EC50 values of 0.79 and 1 nM in NIH3T3 cells expressing the MT1 or MT2 receptor, respectively. Formulations containing tasimelteon have been used in the treatment of non-24-hour sleep-wake disorder.