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Tasimelteon (BMS-214778) is a Dual Melatonin Receptor Agonist (DMRA) recently approved (Hetlioz) for the treatment of Non-24-hour sleep–wake disorder, a disorder primarily found in the totally blind, where a lack of normal synchronization between the 24-hour light–dark cycle and the endogenous circadian rhythm causes it to drift out of alignment with conventional sleep–wake schedules. The endogenous rhythm of the circadian pacemaker in the suprachiasmatic nuclei (SCN) is typically slightly longer than 24 h and therefore must be synchronized to the 24-hour day, normally by light, but exogenous melatonin can also phase-shift circadian rhythms. Tasimelteon is a selective agonist for the SCN melatonin receptors MT1 and MT2 with greater affinity for the MT2 receptor thought to be more important in mediating circadian rhythm phase-shifting. EC50 values are 0.75 nM for MT1 and 0.1 nM for MT2 measured by inhibition of forskolin-stimulated cAMP accumulation in NIH-3T3 cells expressing human MT1 and MT2.
| Molecular Weight | 245.32 |
| Formula | C15H19NO2 |
| CAS Number | 609799-22-6 |
| Solubility (25°C) | DMSO 25 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
[1] No authors listed. Tasimelteon
[2] No authors listed. Tasimelteon
[3] D N Neubauer. Tasimelteon for the treatment of non-24-hour sleep-wake disorder
| Related Melatonin Receptor Products |
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| Melatonin
Melatonin is a hormone made by the pineal gland that can activates melatonin receptor. Melatonin is a novel selective ATF-6 inhibitor and induces human hepatoma cell apoptosis through COX-2 downregulation. |
| Agomelatine
Agomelatine is a metabolically stable analog of melatonin that displays agonist activity for MT1 and MT2 binding with nanomolar affinity. Agomelatine is also a selective 5-HT2C receptor antagonist with pKis of 6.4 and 6.2 at native (porcine) and cloned, human 5-HT2C receptors, respectively. |
| Ramelteon (TAK-375)
Ramelteon (TAK-375) is a novel melatonin receptor agonist for human MT1 and MT2 receptors and chick forebrain melatonin receptors with Ki of 14 pM, 112 pM and 23.1 pM, respectively. |
| 2-Phenylmelatonin
2-Phenylmelatonin is a potent melatonin agonist. |
| Luzindole
Luzindole (N-0774) is a selective competitive melatonin MT1/MT2 antagonist with Ki values of 10.2 and 158 nM for human MT2 and MT1, respectively. |
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