1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Opioid Receptor

Opioid Receptor

Opioid receptors are a group of G protein-coupled receptors with opioids as ligands. The endogenous opioids are dynorphins, enkephalins, endorphins, endomorphins and nociceptin. Opioid receptors are distributed widely in the brain, and are found in the spinal cord and digestive tract. Opioid receptors are molecules, or sites, within the body that are activated by opioid substances. Opioid receptors inhibit the transmission of impulse in excitatory pathways within the human body system. These pathways include the serotonin, catecholamine, and substance P pathways, which are all implicated in pain perception and feelings of well-being. Opioid receptors are further subclassified into mu, delta, and kappa receptors. All the classes, while exhibiting differing modes of action, share some basic similarities. They all are driven by the potassium pump mechanism, which is found on the plasma membrane of the majority of cells.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-112692
    AT-121
    Agonist
    AT-121 is a bifunctional nociception and mu opioid receptor agonist, with Kis of 3.67 and 16.49 nM, respectively. AT-121 is a safe, non-addictive analgesic, and shows antinociceptive and antiallodynic effects.
    AT-121
  • HY-P2626
    [D-Ala2]-Met-Enkephalin
    Agonist
    [D-Ala2]-Met-Enkephalin, an opioid peptide, is a potent opioid agonist. [D-Ala2]-Met-Enkephalin inhibits ACh-induced and suckling-induced oxytocin (OT) release.
    [D-Ala2]-Met-Enkephalin
  • HY-P3045
    Bilaid B
    Control
    Bilaid B (compound 2a) is a tetrapeptide. Bilaid B resembles opioid peptides albeit with a unique, alternating LDLD amino acid configuration. .
    Bilaid B
  • HY-151811
    NAQ
    Agonist
    NAQ is a potent and selective μ opioid receptor partial agonist, with a Ki of 0.55 nM. NAQ shows selectivity for Mu opioid receptor over the δ receptor (Ki=132.50 nM) and the κ receptor (Ki=26.45 nM). NAQ can be used for the research of opioid withdrawal or dependence.
    NAQ
  • HY-13716R
    Noscapine (Standard)
    Agonist
    Noscapine (Standard) is the analytical standard of Noscapine. This product is intended for research and analytical applications. Noscapine ((S,R)-Noscapine) is an orally active phthalideisoquinoline alkaloid with potent antitussive. Noscapine exerts its antitussive effects by activating sigma opioid receptors and is a non-competitive Bradykinin inhibitor. Noscapine disrupts microtubule dynamics, induces mitotic arrest and apoptosis. Noscapine possesses anticancer, neuroprotective, anti-inflammatory activities, and can cross the blood-brain barrier[4].
    Noscapine (Standard)
  • HY-114452A
    LY2940094 tartrate
    Antagonist
    LY2940094 (BTRX-246040) tartrate is a potent, brain penetrant, selective and orally available N/OFQ peptide (NOP) receptor antagonist with high affinity (Ki=0.105 nM) and antagonist potency (Kb=0.166 nM). LY2940094 tartrate reduces Ethanol self-administration and Ethanol seeking in animal models.
    LY2940094 tartrate
  • HY-76711R
    Naltrexone (Standard)
    Antagonist
    Naltrexone (Standard) is the analytical standard of Naltrexone. This product is intended for research and analytical applications. Naltrexone is an antagonist of Opioid receptor. Naltrexone inhibits cell proliferation in vivo. Naltrexone reduces tumor growth by interfering with cell signalling and modifying the immune system.
    Naltrexone (Standard)
  • HY-161812
    MOR agonist-4
    Agonist
    MOR agonist-4 (2d) is a G protein signaling-biased Kappa opioid receptor (KOR) agonist with an EC50 value of 11 nM. MOR agonist-4 contains an electron withdrawing CF3 group and a bias factor of 38 based on triazole. MOR agonist-4 is used in the research of pruritis and analgesia.
    MOR agonist-4
  • HY-W777360
    Harman-13C2,15N
    Inhibitor
    Harman-13C2,15N is 13C and 15N labeled Harmane. Harmane is a benzodiazepine receptor inhibitor (IC50=7 μM), with IC50 values for mACh, Opioid Receptor, MAO-A/B, and α2-adrenergic receptor of 24 μM, 2.8 μM, 0.5 μM, 5 μM, and 18 μM, respectively. Harmane also inhibits haloperidol and serotonin, with IC50 values of 163 μM and 101 μM, respectively. Harmane inhibits the I1 imidazoline receptor (IC50=30 nM) to reduce blood pressure and has antidepressant, anti-anxiety, anticonvulsant, and analgesic effects. Harmane inhibits dopamine biosynthesis by decreasing tyrosine hydroxylase (TH) activity and enhancing L-DOPA-induced cytotoxicity in PC12 cells. Additionally, Harmane can increase the mutagenic effect induced by 2-acetylaminofluorene (AAF).
    Harman-<sup>13</sup>C<sub>2</sub>,<sup>15</sup>N
  • HY-170973
    KOR agonist 4
    Agonist
    KOR agonist 4 (compound 39) is an agonist of Kappa Opioid Receptor. KOR agonist 4 is an activator of G-protein signaling. KOR agonist 4 binds with GTPγS with an EC50 of 14 nM and with an Emax of 83 %. KOR agonist 4 demonstrates moderate to high intrinsic clearance in human hepatocytes. KOR agonist 4 exhibits 60- and 810-fold selectivities versus the related mu (MOR) and delta (DOR) opioid receptors. KOR agonist 4 is potential for central nervous system (CNS) disorders research.
    KOR agonist 4
  • HY-120144
    SR-8993
    SR-8993 is a highly selective nociceptin receptor agonist that can penetrate the blood-brain barrier and has the activity of reducing alcohol intake and relieving withdrawal anxiety. SR-8993 has shown mild anxiolytic effects in animal models and can effectively reverse anxiety caused by acute alcohol withdrawal. SR-8993 further reduces restricted drinking, operant responses for alcohol, and increased drinking induced by long-term intermittent exposure to alcohol. SR-8993 also reduces stress- and cue-related alcohol-seeking relapse.
    SR-8993
  • HY-147560
    σ1 Receptor/μ Opioid receptor modulator 1
    Agonist
    σ1 Receptor/μ Opioid receptor modulator 1 (Compound 44) is a potent σ1 receptor antagonist and μ opioid receptor agonist with Kis of 1.86 nM and 2.1 nM, respectively.σ1 Receptor/μ Opioid receptor modulator 1 exhibits potent analgesic activity. σ1 Receptor/μ Opioid receptor modulator 1 can be used for the research of neuropathic pain.
    σ1 Receptor/μ Opioid receptor modulator 1
  • HY-105235A
    Enadoline hydrochloride
    Agonist
    Enadoline (CI-977) hydrochloride is a highly selective, brain-penetrating, and nonpeptide kappa-opioid receptor (KOR) agonist (Ki=1.25 nM). Antinociceptive effects.
    Enadoline hydrochloride
  • HY-76657AR
    Alvimopan (dihydrate) (Standard)
    Antagonist
    Alvimopan (dihydrate) (Standard) is the analytical standard of Alvimopan (dihydrate). This product is intended for research and analytical applications. Alvimopan dihydrate (ADL 8-2698 dihydrate) is a potent, selective, orally active and reversible μ-opioid receptor antagonist, with an IC50 of 1.7 nM. Alvimopan dihydrate has selectivity for μ-opioid receptor (Ki=0.47 nM) over κ- and δ-opioid receptors (Kis=100, 12 nM, respectively). Alvimopan dihydrate can be used for the research of postoperative ileus.
    Alvimopan (dihydrate) (Standard)
  • HY-P10395
    DP50
    Agonist
    DP50 is a bifunctional compound that contains an opioid receptor (MOP) agonist and a neuropeptide FF receptor (NPFFR) antagonist. DP50 can be used in analgesia-related research.
    DP50
  • HY-123389
    MR2034
    MR2034 ((R)-UM-1071) is a κ-opioid receptor agonist with activity that stimulates the hypothalamic-pituitary-adrenal axis. MR2034 has shown the potential to promote mood and inhibit addictive behaviors in animal models and can be used to study inhibitory approaches related to mood and addictive disorders. MR2034 is selective for κ-opioid receptors and can effectively modulate biological processes related to stress and mood.
    MR2034
  • HY-G0021S
    N-Desmethylclozapine-d8
    Agonist
    N-Desmethylclozapine-d8 is the deuterium labeled N-Desmethylclozapine. N-Desmethylclozapine is a major active metabolite of the atypical antipsychotic agent Clozapine. N-Desmethylclozapine is a potent, allosteric and partial M1 receptors agonist (EC50=115 nM) and is able to potentiate hippocampal N-methyl-d-aspartate (NMDA) receptor currents through M1 receptor activation. N-Desmethylclozapine is also a δ-opioid agonist[1][2].
    N-Desmethylclozapine-d<sub>8</sub>
  • HY-P2052
    AWL 60
    Agonist
    AWL 60 is a compound with SP antagonist and weak opioid agonist properties, which can antagonize SP-agonists in vitro and attenuate the decrease in blood pressure caused by SP-agonists in vivo.
    AWL 60
  • HY-P1317
    Nociceptin (1-13), amide
    Agonist
    Nociceptin (1-13),amide is a potent ORL1 receptor (opioid receptor-like 1 receptor,OP4) agonist with a pEC50 of 7.9 for mouse vas deferens and a Ki of 0.75 nM for binding to rat forebrain membranes.
    Nociceptin (1-13), amide
  • HY-162771
    Mu opioid receptor agonist 1
    Agonist
    Mu opioid receptor agonist 1 (compound 12) is a Mu opioid receptor agonist. Mu opioid receptor agonist 1 can be used in nervous system related research.
    Mu opioid receptor agonist 1
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