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-P0185
    Endomorphin 1
    Agonist 99.92%
    Endomorphin 1, a high affinity, highly selective agonist of the μ-opioid receptor (Ki: 1.11 nM), displays reasonable affinities for kappa3 binding sites, with Ki value between 20 and 30 nM. Endomorphin 1 has antinociceptive properties.
    Endomorphin 1
  • HY-17609
    Difelikefalin
    Agonist 99.50%
    Difelikefalin (CR-845; FE-202845) is a peripherally restricted and selective agonist of kappa opioid receptor (KOR). Difelikefalin produces anti-inflammatory effects and has the potential in modulating pruritus in conditions such as chronic kidney disease.
    Difelikefalin
  • HY-15536
    Cebranopadol
    Agonist 98.46%
    Cebranopadol is an analgesic NOP and opioid receptor agonist with Kis/EC50s of 0.9 nM/13 nM, 0.7 nM/1.2 nM, 2.6 nM/17 nM, 18 nM/110 nM for human NOP, MOP, KOP and delta-opioid peptide (DOP) receptor, respectively.
    Cebranopadol
  • HY-120645
    BMS-986122
    Agonist 99.94%
    BMS-986122 is a selective, potent positive allosteric modulator of the mu-opioid receptor (μ-OR). BMS-986122 shows potentiation of orthosteric agonist-mediated β-arrestin recruitment, adenylyl cyclase inhibition, and G protein activation. BMS-986122 potentiates DAMGO-mediated [35S]GTPγS binding in mouse brain membranes.
    BMS-986122
  • HY-76657A
    Alvimopan dihydrate
    Antagonist 98.66%
    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
  • HY-114452
    LY2940094
    Antagonist 99.91%
    LY2940094 (BTRX-246040) is a potent, selective and orally available nociceptin receptor (NOP receptor) antagonist with high affinity (Ki=0.105 nM) and antagonist potency (Kb=0.166 nM). LY2940094 reduces ethanol self-administration in animal models.
    LY2940094
  • HY-18618A
    SB-612111 hydrochloride
    Inhibitor 99.26%
    SB-612111 hydrochloride hydrochloride is a novel and potent opiate receptor-like orphan receptor (ORL-1) antagonist with a high affinity for hORL-1 (Ki=0.33 nM). SB-612111 hydrochloride exhibits selectivity for μ-,?κ- and?δ-receptors with Ki values of?57.6 nM, 160.5 nM and 2109 nM, respecticely. SB-612111 hydrochloride effectively antagonizes the pronociceptive action of Nociceptin (HY-P0183) in an acute pain model.
    SB-612111 hydrochloride
  • HY-101386
    PZM21
    Agonist 99.46%
    PZM21 is a potent and selective μ opioid receptor agonist with an EC50 of 1.8 nM.
    PZM21
  • HY-N0923
    Corydaline
    Agonist 99.70%
    Corydaline ((+)-Corydaline), an isoquinoline alkaloid isolated from Corydalis yanhusuo, is an AChE inhibitor with an IC50 of 226 μM. Corydaline is a μ-opioid receptor (Ki of 1.23 μM) agonist and inhibits enterovirus 71 (EV71) replication (IC50 of 25.23 μM). Corydaline has anti-angiogenic, anti-allergic and gastric-emptying and antinociceptive activities.
    Corydaline
  • HY-P1334
    DPDPE
    Agonist 99.83%
    DPDPE, an opioid peptide, is a selective δ-opioid receptor?(DOR) agonist?with anticonvulsant effects.
    DPDPE
  • HY-101392
    Harmane
    Inhibitor 99.91%
    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 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).
    Harmane
  • HY-124754
    Navacaprant
    Inhibitor 99.97%
    Navacaprant (BTRX-335140) is a selective and orally active κ opioid receptor (KOR) antagonist, has antagonist activity for κOR, μOR and δOR with IC50 values of 0.8 nM, 110 nM, and 6500 nM, respectively. Navacaprant endows with favorable in vitro ADMET and in vivo pharmacokinetic profiles and medication-like duration of action in rats. Navacaprant distributes well into the CNS and can be used for the research of neuropathy.
    Navacaprant
  • HY-P1335A
    CTAP TFA
    Antagonist 99.60%
    CTAP TFA is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP TFA displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP TFA can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction.
    CTAP TFA
  • HY-P0244
    Dermorphin
    Agonist 99.96%
    Dermorphin is a natural heptapeptide μ-opioid receptor (MOR) agonist found in amphibian skin. Inhibition of neuropathic pain.
    Dermorphin
  • HY-19627A
    Naldemedine tosylate
    Antagonist
    Naldemedine (S-297995) tosylate is an orally active μ-opioid receptor antagonist (PAMORA). Naldemedine tosylate shows potent binding affinities (Ki=0.34, 0.43, 0.94 nM, respectively) and antagonist activities (IC50=25.57, 7.09, 16.1 nM, respectively) for recombinant human μ-, δ-, and κ- opioid receptors. Naldemedine can be used in opioid-induced constipation (OIC) research. Naldemedine tosylate is predicted to bind to 3CLpro encoded by SARS-CoV2 genome.
    Naldemedine tosylate
  • HY-P1467A
    [Met5]-Enkephalin, amide TFA
    Agonist 99.58%
    [Met5]-Enkephalin, amide TFA is an agonist for δ opioid receptors as well as putative ζ (zeta) opioid receptors.
    [Met5]-Enkephalin, amide TFA
  • HY-105343
    BW-180C
    Agonist 99.92%
    BW-180C ([D-Ala2, D-Leu5]-Enkephalin; DADLE) is an δ opioid receptor (DOR) agonist, which belongs to the enkephalin family. Neuroprotective agent. BW-180C reversibly inhibits cellular transcription in neurons without causing cell injury.
    BW-180C
  • HY-P0088
    Porcine dynorphin A(1-13)
    Agonist 99.85%
    Porcine dynorphin A (1-13) is a potent, endogenous κ opioid receptor agonist and is antinociceptive at physiological concentrations.
    Porcine dynorphin A(1-13)
  • HY-G0021
    N-Desmethylclozapine
    Agonist 98.99%
    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.
    N-Desmethylclozapine
  • HY-120613
    BMS-986187
    Activator 98.93%
    BMS-986187 is an δ-opioid receptor-selective positive allosteric modulator (PAM) with an EC50 of 0.03 μM and a pKB?of 6.02 (~1?μM). BMS-986187 has no observable PAM activity at the?μ-receptor (EC50=3 μM).
    BMS-986187
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