Orexin receptors (OX receptor) include orexin 1 receptor and orexin 2 receptor. Orexin receptor type 1 (Ox1R or OX1), is a protein that in humans is encoded by the HCRTR1gene. The orexin 1 receptor (OX1), is a G-protein coupled receptor expressed in the hypothalamus and involved in the regulation of feeding behaviour. OX1 selectively binds the orexin-A neuropeptide. It shares 64% identity with OX2. The OX2 receptors, also known as hypocretin receptor 2, are located primarily in the cerebral cortex, paraventricular hypothalamus, nucleus accumbens, subthalamic and paraventricular thalamus where they are thought to regulate sleep-wakefulness. The OX2 receptor displays equal affinity for Orexin A and Orexin B. The human OX2 receptor gene has been localized to chromosome 6.


Anti-infection >
Arenavirus Bacterial CMV Enterovirus Filovirus Fungal HBV HCV HIV HSV Influenza Virus Parasite Reverse Transcriptase RSV SARS-CoV
Antibody-drug Conjugate >
ADC Cytotoxin ADC Linker Drug-Linker Conjugates for ADC PROTAC-linker Conjugate for PAC
Apoptosis >
Apoptosis Bcl-2 Family c-Myc Caspase DAPK Ferroptosis IAP MDM-2/p53 PKD RIP kinase Survivin Thymidylate Synthase TNF Receptor
Autophagy >
Autophagy LRRK2 ULK Mitophagy
Cell Cycle/DNA Damage >
Antifolate APC ATM/ATR Aurora Kinase Casein Kinase CDK Checkpoint Kinase (Chk) CRISPR/Cas9 Deubiquitinase DNA Alkylator/Crosslinker DNA-PK DNA/RNA Synthesis Eukaryotic Initiation Factor (eIF) G-quadruplex Haspin Kinase HDAC HSP IRE1 Kinesin LIM Kinase (LIMK) Microtubule/Tubulin Mps1 Nucleoside Antimetabolite/Analog p97 PAK PARP PERK Polo-like Kinase (PLK) PPAR RAD51 ROCK Sirtuin SRPK Telomerase TOPK Topoisomerase Wee1
Cytoskeleton >
Arp2/3 Complex Dynamin Gap Junction Protein Integrin Kinesin Microtubule/Tubulin Mps1 Myosin PAK
Epigenetics >
AMPK Aurora Kinase DNA Methyltransferase Epigenetic Reader Domain HDAC Histone Acetyltransferase Histone Demethylase Histone Methyltransferase JAK MicroRNA PARP PKC Sirtuin Protein Arginine Deiminase
GPCR/G Protein >
5-HT Receptor Adenosine Receptor Adenylate Cyclase Adiponectin Receptor Adrenergic Receptor Angiotensin Receptor Bombesin Receptor Bradykinin Receptor Cannabinoid Receptor CaSR CCR CGRP Receptor Cholecystokinin Receptor CRFR CXCR Dopamine Receptor EBI2/GPR183 Endothelin Receptor GHSR Glucagon Receptor Glucocorticoid Receptor GNRH Receptor GPCR19 GPR109A GPR119 GPR120 GPR139 GPR40 GPR55 GPR84 Guanylate Cyclase Histamine Receptor Imidazoline Receptor Leukotriene Receptor LPL Receptor mAChR MCHR1 (GPR24) Melatonin Receptor mGluR Motilin Receptor Neurokinin Receptor Neuropeptide Y Receptor Neurotensin Receptor Opioid Receptor Orexin Receptor (OX Receptor) Oxytocin Receptor P2Y Receptor Prostaglandin Receptor Protease-Activated Receptor (PAR) Ras RGS Protein Sigma Receptor Somatostatin Receptor TSH Receptor Urotensin Receptor Vasopressin Receptor Melanocortin Receptor
Immunology/Inflammation >
Aryl Hydrocarbon Receptor CCR Complement System COX CXCR FLAP Histamine Receptor IFNAR Interleukin Related IRAK MyD88 NO Synthase NOD-like Receptor (NLR) PD-1/PD-L1 PGE synthase Salt-inducible Kinase (SIK) SPHK STING Thrombopoietin Receptor Toll-like Receptor (TLR) Arginase
JAK/STAT Signaling >
EGFR JAK Pim STAT
MAPK/ERK Pathway >
ERK JNK KLF MAP3K MAP4K MAPKAPK2 (MK2) MEK Mixed Lineage Kinase MNK p38 MAPK Raf Ribosomal S6 Kinase (RSK)
Membrane Transporter/Ion Channel >
ATP Synthase BCRP Calcium Channel CFTR Chloride Channel CRAC Channel CRM1 EAAT2 GABA Receptor GlyT HCN Channel iGluR Monoamine Transporter Monocarboxylate Transporter Na+/Ca2+ Exchanger Na+/HCO3- Cotransporter Na+/K+ ATPase nAChR NKCC P-glycoprotein P2X Receptor Potassium Channel Proton Pump SGLT Sodium Channel TRP Channel URAT1
Metabolic Enzyme/Protease >
15-PGDH 5 alpha Reductase 5-Lipoxygenase Acetyl-CoA Carboxylase Acyltransferase Adenosine Deaminase Adenosine Kinase Aldehyde Dehydrogenase (ALDH) Aldose Reductase Aminopeptidase Angiotensin-converting Enzyme (ACE) ATGL ATP Citrate Lyase Carbonic Anhydrase Carboxypeptidase Cathepsin CETP COMT Cytochrome P450 Dipeptidyl Peptidase Dopamine β-hydroxylase E1/E2/E3 Enzyme Elastase Enolase FAAH FABP Factor Xa Farnesyl Transferase Fatty Acid Synthase (FAS) FXR Glucokinase GSNOR Gutathione S-transferase HCV Protease Hexokinase HIF/HIF Prolyl-Hydroxylase HIV Integrase HIV Protease HMG-CoA Reductase (HMGCR) HSP Indoleamine 2,3-Dioxygenase (IDO) Isocitrate Dehydrogenase (IDH) Lactate Dehydrogenase LXR MAGL Mineralocorticoid Receptor Mitochondrial Metabolism MMP Nampt NEDD8-activating Enzyme Neprilysin PAI-1 PDHK PGC-1α Phosphatase Phosphodiesterase (PDE) Phospholipase Procollagen C Proteinase Proteasome Pyruvate Kinase RAR/RXR Renin ROR Ser/Thr Protease SGK Stearoyl-CoA Desaturase (SCD) Thrombin Tryptophan Hydroxylase Tyrosinase Xanthine Oxidase
Neuronal Signaling >
5-HT Receptor AChE Adenosine Kinase Amyloid-β Beta-secretase CaMK CGRP Receptor COMT Dopamine Receptor Dopamine Transporter FAAH GABA Receptor GlyT iGluR Imidazoline Receptor mAChR Melatonin Receptor Monoamine Oxidase nAChR Neurokinin Receptor Opioid Receptor Serotonin Transporter γ-secretase
NF-κB >
NF-κB IKK Keap1-Nrf2 MALT1
PI3K/Akt/mTOR >
Akt AMPK ATM/ATR DNA-PK GSK-3 MELK mTOR PDK-1 PI3K PI4K PIKfyve PTEN
PROTAC >
PROTAC E3 Ligase Ligand-Linker Conjugate Ligand for E3 Ligase PROTAC Linker PROTAC-linker Conjugate for PAC
Protein Tyrosine Kinase/RTK >
Ack1 ALK Bcr-Abl BMX Kinase Btk c-Fms c-Kit c-Met/HGFR Discoidin Domain Receptor DYRK EGFR Ephrin Receptor FAK FGFR FLT3 IGF-1R Insulin Receptor IRAK Itk PDGFR PKA Pyk2 ROS Src Syk TAM Receptor Trk Receptor VEGFR
Stem Cell/Wnt >
Casein Kinase ERK Gli GSK-3 Hedgehog Hippo (MST) JAK Notch Oct3/4 PKA Porcupine ROCK sFRP-1 Smo STAT TGF-beta/Smad Wnt YAP β-catenin γ-secretase
TGF-beta/Smad >
TGF-beta/Smad PKC ROCK TGF-β Receptor
Vitamin D Related >
VD/VDR
Others >
Androgen Receptor Aromatase Estrogen Receptor/ERR Progesterone Receptor Thyroid Hormone Receptor Others

IPSU

IPSU is a selective, orally available and brain penetrant OX2R antagonist with a pKi of 7.85.

  • CAS Number: 1373765-19-5
  • MF: C23H27N5O2
  • MW: 405.493
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 702.0±70.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 378.4±35.7 °C

Revdofilimab

Revdofilimab (ABBV-368) is a human IgG1 agonist monoclonal antibody against OX40. Among them, OX40 is a member of the TNF receptor superfamily expressed on activated and memory T cell subsets and T regulatory cells[1].

  • CAS Number: 2230138-89-1
  • MF:
  • MW:
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

NTNT 185

YNT-185 dihydrochloride is a nonpeptide, selective orexin type-2 receptor (OX2R) agonist, with EC50s of 0.028 and 2.75 μM for OX2R and OX1R, respectively. YNT-185 dihydrochloride ameliorates narcolepsy-cataplexy symptoms in mouse models[1][2].

  • CAS Number: 1804978-82-2
  • MF: C33H39Cl2N5O5S
  • MW: 688.66
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

YNT-185

YNT-185 is a nonpeptide, selective orexin type-2 receptor (OX2R) agonist, with EC50s of 0.028 and 2.75 μM for OX2R and OX1R, respectively. YNT-185 ameliorates narcolepsy-cataplexy symptoms in mouse models[1][2].

  • CAS Number: 1804978-81-1
  • MF: C33H37N5O5S
  • MW: 615.74
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ACT 335827

ACT-335827 is a selective, orally active, brain-penetrant orexin type 1 receptor antagonist. ACT-33582 acts on OXR1 and OXR2 with IC50 values of 6 nM and 417 nM, respectively. ACT-33582 can be used in studies related to neurological disorders[1].

  • CAS Number: 1354039-86-3
  • MF: C31H38N2O5
  • MW: 518.64400
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Orexin B (mouse, rat)

Orexin B, rat, mouse is an endogenous agonist at Orexin receptor with Kis of 420 and 36 nM for OX1 and OX2, respectively.

  • CAS Number: 202801-92-1
  • MF: C126H215N45O34S
  • MW: 2936.401
  • Catalog: Peptides
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Orexin receptor antagonist 4

Orexin receptor antagonist 4 is potent and selective orexin 2 receptor (OX2R) antagonist with an IC50 of 4.27 nM. Orexin receptor antagonist 4 is 61-fold selective for the OX2R over the OX1R (IC50 of 295 nM) (WO2018206959A1; example 1)[1].

  • CAS Number: 2251017-69-1
  • MF: C23H25FN4O2
  • MW: 408.47
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

lemborexant

Lemborexant (E-2006) is a dual antagonist of the orexin OX1 and OX2 receptors which is under development for treatment of insomnia.

  • CAS Number: 1369764-02-2
  • MF: C22H20F2N4O2
  • MW: 410.417
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 596.1±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 314.3±30.1 °C

Filorexant

Filorexant (MK-6096) is an orally bioavailable potent and selective reversible antagonist of OX1 and OX2 receptor(<3 nM in binding).

  • CAS Number: 1088991-73-4
  • MF: C24H25FN4O2
  • MW: 420.479
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 540.2±50.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 280.5±30.1 °C

MK-3697

MK-3697 is an isonicotinamide small molecule, acting as a potent and selective Orexin 2 receptor antagonist with Ki = 0.95 nM.IC50 value: 0.95 nM(Ki)Target: Orexin 2 receptor antagonistMK-3697 is a highly potent, orally bioavailable selective orexin 2 receptor antagonists (2-SORAs) that possess acceptable profiles for clinical development. Herein we report additional SAR studies within the “triaryl” amide 2-SORA series focused on improvements in compound stability in acidic media and time-dependent inhibition of CYP3A4. MK-3697 has improved stability and TDI profiles as well as excellent sleep efficacy across species.

  • CAS Number: 1224846-01-8
  • MF: C23H21N5O3S
  • MW: 447.509
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

[Ala11,D-Leu15]-Orexin B TFA

[Ala11,D-Leu15]-Orexin B(human) is a potent and selective orexin-2 receptor (OX2) agonist. [Ala11,D-Leu15]-Orexin B(human) shows a 400-fold selectivity for the OX2 (EC50=0.13 nM) over OX1 (52 nM)[1].

  • CAS Number: 532932-99-3
  • MF: C120H206N44O35S
  • MW: 2857.258
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SB 334867

SB-334867 free base is a selective non-peptide orexin OX1 receptor antagonist with a pKb value of 7.2.IC50 value: 7.2 (pKb) [1]Target: orexin OX1 receptor in vitro: SB-334867-A inhibited the orexin-A (10 nM) and orexin-B (100 nM)-induced calcium responses (pK(B)=7.27+/-0.04 and 7.23+/-0.03 respectively, n=8), but had no effect on the UTP (3 microM)-induced calcium response in CHO-OX(1) cells. SB-334867-A (10 microM) also inhibited OX(2) mediated calcium responses (32.7+/-1.9% versus orexin-A) [1].in vivo: Single-unit recordings in anesthetized rats demonstrated the central effects of the selective orexin-1 receptor antagonist SB-334867 (2 mg/kg, intravenous), as it reversed the excitatory effects of orexin-A administration (6 microg, intracerebroventricular) on the activity of locus coeruleus (LC) cells [2]. The ICV injection of SB-334867 alone had no effect on the formalin-induced nociceptive behaviors. Pre-treatment with SB-334867 at a dose of 0.5 nmol significantly attenuated the analgesia induced by morphine (at dose 1.5mg/kg of morphine; interphase and phase 2B and at dose 3mg/kg of morphine just phase 2B of formalin test) [3]. Administered alone, SB-334867 (30 mg/kg, but not lower doses) significantly reduced food intake and most active behaviours (eating, grooming, sniffing, locomotion and rearing), while increasing resting. Pretreatment with SB-334867 dose-dependently blocked these effects of orexin-A, with significant antagonism evident at dose levels (3-10 mg/kg) below those required to produce intrinsic behavioural effects under present test conditions in rats [4].Toxicity: Acute systemic treatment with the selective orexin-1 (OX1R) antagonist SB-334867 reduces food intake in rats, an effect associated with an acceleration in behavioural satiety and unrelated to gross behavioural disruption, alterations in palatability, or toxicity.

  • CAS Number: 792173-99-0
  • MF: C17H13N5O2
  • MW: 319.317
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 549.5±58.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 286.1±32.3 °C

Fazamorexant

Fazamorexant (YZJ-1139) is a potent orexin receptor antagonist. Fazamorexant can be used for insomnia research[1][2].

  • CAS Number: 1808918-69-5
  • MF: C25H25FN4O2
  • MW: 432.49
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JNJ-54717793

JNJ-54717793, as a brain penetrant, is an orally active, selective and high affinity orexin-1 receptor (OX1R) antagonist (plasma EC50=85 ng/mL). The Ki values of JNJ-54717793 for hOX1R (human OX1R) and hOX2R are 16 nM and 700 nM, respectively. JNJ-54717793 is a potent compound of anxiety disorders[1][2].

  • CAS Number: 1628843-99-1
  • MF: C22H18F4N6O
  • MW: 458.41
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Almorexant HCI

Almorexant Hcl (ACT078573) is a potent and competitive dual orexin 1 receptor (OX1)/orexin 2 receptor (OX2) antagonist with Ki values of 1.3 and 0.17 nM for OX1 and OX2, respectively.

  • CAS Number: 913358-93-7
  • MF: C29H32ClF3N2O3
  • MW: 549.024
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Orexin A (17-33) trifluoroacetate salt

OXA(17-33) is a potent and selective orexin-1 receptor (OX1) agonist. OXA(17-33) shows a ∼23-fold selectivity for the OX1 (EC50=8.29 nM) over OX2 (187 nM)[1].

  • CAS Number: 343268-91-7
  • MF: C79H125N23O22
  • MW: 1748.98
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Seltorexant hydrochloride

Seltorexant hydrochloride (JNJ-42847922 hydrochloride) is an orally active, high-affinity, and selective OX2R antagonist (pKi values of 8.0 and 8.1 for human and rat OX2R). Seltorexant hydrochloride crosses the blood-brain barrier and quickly occupies OX2R binding sites in the rat brain[1].

  • CAS Number: 1293284-49-7
  • MF: C21H23ClFN7O
  • MW: 443.91
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Orexin B (human) trifluoroacetate salt

Orexin B, human is an endogenous agonist at Orexin receptor with Kis of 420 and 36 nM for OX1 and OX2, respectively.

  • CAS Number: 205640-91-1
  • MF: C123H212N44O35S
  • MW: 2899.338
  • Catalog: Peptides
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Suntinorexton

Suntinorexton, a heterocyclic compound, is an orexin type 2 receptor agonist extracted from patent WO2019027058A1, page 288[1].

  • CAS Number: 2274802-89-8
  • MF: C23H28F2N2O4S
  • MW: 466.54
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Nemorexant

Nemorexant is a potent orexin receptor antagonist extracted from patent WO2015083094A1, compound example 7, has IC50s of 2 nM and 3 nM for Ox1 receptor and Ox2 receptor, respectively.

  • CAS Number: 1505484-82-1
  • MF: C23H23ClN6O2
  • MW: 450.921
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 747.6±70.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 405.9±35.7 °C

OX2R-IN-1

OX2R-IN-1 is a low cytotoxicity profile OX2R-IN-1 antagonist (a potential OX2R binder) with an IC50 value of 484 μM. OX2R-IN-1 can cross the BBB into the brain with a short half-life[1].

  • CAS Number: 2639148-08-4
  • MF: C20H28ClN3O5S
  • MW: 457.97
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Orexin receptor antagonist 2

Orexin receptor antagonist 2 (compound 30) is a potent orexin receptor antagonist with pKis of 7.69 and 9.78. Orexin receptor antagonist 2 has the potential for the research of insomnia[1].

  • CAS Number: 1457940-75-8
  • MF: C25H31N5O2
  • MW: 433.55
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Tebideutorexant

Tebideutorexant is a potent orexin receptor antagonist. Tebideutorexant can be used for insomnia research[1].

  • CAS Number: 1637681-55-0
  • MF: C23H16D2F4N4O2
  • MW: 460.42
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Efizonerimod alfa

Efizonerimod alfa is a potent monoclonal antibody OX40 activator. Efizonerimod alfa can be used for cancer research[1].

  • CAS Number: 1635395-27-5
  • MF:
  • MW:
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Hypocretin (70-98) (human)

Hypocretin (70-98), human is a polypeptide that is capable of binding to an orexin receptor OX1R and promotes Apoptosis[1].

  • CAS Number: 1129545-33-0
  • MF: C125H214N44O37S
  • MW: 2957.374
  • Catalog: Apoptosis
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Nivasorexant

Nivasorexant is a potent orexin receptor antagonist[1].

  • CAS Number: 1435480-40-2
  • MF: C23H23N7O2
  • MW: 429.47
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SB-649868

SB-649868 is a potent and selective orally active orexin (OX) 1 and OX2 receptor antagonist (pKi =9.4 and 9.5 at the OX1 and OX2 receptor, respectively).

  • CAS Number: 380899-24-1
  • MF: C26H24FN3O3S
  • MW: 477.55000
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Seltorexant

Seltorexant (JNJ-42847922) is an orally active, high-affinity, and selective OX2R antagonist (pKi values of 8.0 and 8.1 for human and rat OX2R). Seltorexant (JNJ-42847922) crosses the blood-brain barrier and quickly occupies OX2R binding sites in the rat brain[1].

  • CAS Number: 1293281-49-8
  • MF: C21H22FN7O
  • MW: 407.44
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Firazorexton

Firazorexton is a potent orexin type 2 receptor (OX2R) agonist (patent WO2019027058A1, example 395)[1].

  • CAS Number: 2274802-95-6
  • MF: C22H25F3N2O4S
  • MW: 470.51
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Almorexant

Almorexant(ACT078573) is a potent and competitive dual orexin 1 receptor (OX1)/orexin 2 receptor (OX2) antagonist with Ki values of 1.3 and 0.17 nM for OX1 and OX2, respectively.IC50 value: 1.3/0.7 nM(OX1/OX2 receptor) [1] [2]Target: Dual OX!/OX2 receptorin vitro: [(3)H]Almorexant bound to a single saturable site on hOX(1) and hOX(2) with high affinity (K(d) of 1.3 and 0.17 nM, respectively. In Schild analyses using the [(3)H]inositol phosphates assay, almorexant acted as a competitive antagonist at hOX(1) and as a noncompetitive-like antagonist at hOX(2). In binding kinetic analyses, [(3)H]almorexant had fast association and dissociation rates at hOX(1), whereas it had a fast association rate and a remarkably slow dissociation rate at hOX(2) [1]. in vivo: During the 12-h dark period after dosing, ALM(Almorexant) exacerbated cataplexy in TG mice and increased nonrapid eye movement sleep with heightened sleep/wake fragmentation in both genotypes. ALM showed greater hypnotic potency in WT mice than in TG mice. The 100 mg/kg dose conferred maximal promotion of cataplexy in TG mice and maximal promotion of REM sleep in WT mice. In TG mice, ALM (30 mg/ kg) paradoxically induced a transient increase in active wakefulness [3]. Almorexant 200 mg showed significantly less 'Drug Liking' than both zolpidem doses (p < 0.01), and almorexant 400 mg had smaller effects than zolpidem 20 mg (p < 0.05), while almorexant 1,000 mg was not different from either zolpidem dose [4].

  • CAS Number: 871224-64-5
  • MF: C29H31F3N2O3
  • MW: 512.563
  • Catalog: Orexin Receptor (OX Receptor)
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 620.4±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 329.0±31.5 °C