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-P1299A
    UFP-101 TFA
    Antagonist 99.74%
    UFP-101 TFA is a potent, selective, and competitive antagonist of the N/OFQ peptide (NOP) receptor, with a pKi of 10.24. UFP-101 TFA displays >3000-fold selectivity over δ, μ and κ opioid receptors. UFP-101 TFA shows antidepressant-like effect.
    UFP-101 TFA
  • HY-104006
    CYM51010
    Agonist 99.12%
    CYM51010 is a biased ligand of μ-opioid receptor – δ-opioid receptor heterodimers with an EC50 of 403 nM. CYM51010 exhibits anti-nociceptive activity similar to morphine but with a decreased levels of tolerance development and withdrawal symptoms.
    CYM51010
  • HY-N0398
    Sec-O-Glucosylhamaudol
    Inhibitor 99.81%
    Sec-O-Glucosylhamaudol is a natural compound extracted from Peucedanum japonicum Thunb, decreases levels of μ-opioid receptor, with analgesic effect.
    Sec-O-Glucosylhamaudol
  • HY-P1337A
    Dynorphin B (1-13) (TFA)
    Agonist
    Dynorphin B (1-13) TFA acts as an agonist on opioid κ-receptor.
    Dynorphin B (1-13) (TFA)
  • HY-124959
    Spiradoline mesylate
    Agonist 99.95%
    Spiradoline mesylate (U-62066 mesylate), an arylacetamide, is a selective kappa opioid receptor (KOR) agonist with a Ki of 8.6 nM in guinea pig. The Ki values of Spiradoline mesylate for μ and δ receptors are 252 nM and 9400 nM, respectively. Spiradoline mesylate has potent diuretic, analgesic, antiarrythmic, antitussive, neuroprotective properties and easily penetrates the blood-brain barrier.
    Spiradoline mesylate
  • HY-13044
    ADL-5859 hydrochloride
    Agonist 99.77%
    ADL-5859 hydrochloride (compound 20) is a selective and orally active δ opioid receptor (DOR) agonist with an Ki and an EC50 value of 0.84 and 20 nM, respectively. ADL-5859 hydrochloride also shows inhibitory activity to hERG channel with an IC50 value of 78 μM. ADL-5859 hydrochloride can be used for the research of pain.
    ADL-5859 hydrochloride
  • HY-P0179
    β-Casomorphin, bovine
    Agonist 99.89%
    β-Casomorphin, bovine (β-Casomorphin-7 (bovine) ) is a opioid peptide with an IC50 of 14 μM in an Opioid receptors binding assay.
    β-Casomorphin, bovine
  • HY-P0185A
    Endomorphin 1 acetate
    Agonist 99.92%
    Endomorphin 1 acetate, 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 acetate has antinociceptive properties.
    Endomorphin 1 acetate
  • HY-101011
    Naloxonazine dihydrochloride
    Antagonist 98.1%
    Naloxonazine dihydrochloride is a specific μ-opioid receptor antagonist with an IC50 of 5.4 nM. Naloxonazine dihydrochloride also shows anti-leishmanial activity.
    Naloxonazine dihydrochloride
  • HY-136208
    TAN-452
    Antagonist 99.44%
    TAN-452 is an orally active, selective peripherally acting δ-opioid receptor (DOR) antagonist with a Ki of 0.47 nM and a Kb of 0.21 nM. TAN-452 is an antagonist for μ-opioid receptor (MOR; Ki=36.56 nM and Kb=9.43 nM) and κ-opioid receptor (KOR; Ki=5.31 nM and Kb=7.18 nM). TAN-452, a derivative of Naltrindole, demonstrates low brain penetrability and attenuates morphine-induced side effects without affecting pain control.
    TAN-452
  • HY-76711
    Naltrexone
    Antagonist 99.94%
    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
  • HY-13716
    Noscapine
    Agonist 98.70%
    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.
    Noscapine
  • HY-107741
    SNC162
    Agonist 99.72%
    SNC162 is a delta-opioid receptor agonist with an IC50 of 0.94 nM. SNC162 has antidepressant-like effects and produces a selective enhancement of the antinociceptive effects of fentanyl in rhesus monkeys.
    SNC162
  • HY-120511
    KNT-127
    Agonist 99.60%
    KNT-127 is a potent δ-opioid receptor agonist that crosses the blood-brain barrier (BBB). KNT-127 is highly selective to the δ receptor, with Ki values of 0.16, 21.3 and 153 nM for δ, μ and κ receptors, respectively. KNT-127 increases the release of dopamine and L-glutamate in the striatum, nucleus accumbens, and prefrontal cortex. KNT-127 has analgesic, antidepressant and antianxiety activities.
    KNT-127
  • HY-101205
    ICI 199441
    Agonist 99.39%
    ICI 199441 is a potent and selective κ-opioid receptor agonist. ICI 199441 can improve heart resistance to ischemia/reperfusion.
    ICI 199441
  • HY-101376
    (+)-N-Allylnormetazocine hydrochloride
    Antagonist ≥99.0%
    (+)-N-Allylnormetazocine ((+)-SKF 10047) hydrochloride is a benzomorphan opioid with psychotomi metic effects. (+)-N-Allylnormetazocine hydrochloride is an opioid receptor antagonist with Ki values of 300 nM and 27 μM for σ1 and σ2 opioid receptors, respectively. (+)-N-Allylnormetazocine hydrochloride can be used for the research of neurological disease.
    (+)-N-Allylnormetazocine hydrochloride
  • HY-107721
    (±)-J-113397
    Antagonist 98.59%
    (±)-J-113397 is a potent and selective non-peptidyl ORL1 receptor antagonist with a Ki of 1.8 nM for cloned human ORL1. J-113397 inhibited nociceptin/orphanin FQ-stimulated GTPγS binding to CHO cells expressing ORL1 with an IC50 value of 5.3 nM. J-113397 can be used for researching the physiological roles of nociceptin/orphanin FQ.
    (±)-J-113397
  • HY-P3870A
    DALDA acetate
    Agonist 99.53%
    DALDA acetate is a potent and highly selective μ-opioid receptor agonist with a Ki of 1.69 nM. DALDA acetate shows antinociceptive and respiratory effects.
    DALDA acetate
  • HY-A0118A
    Naloxegol oxalate
    Antagonist 99.91%
    Naloxegol oxalate (NKTR-118 oxalate; AZ-13337019 oxalate) is a μ-opioid-receptor antagonist. Naloxegol oxalate inhibits opioid binding in μ-opioid receptors in the gastrointestinal tract and effective for alleviating opioid-induced constipation.
    Naloxegol oxalate
  • HY-107747
    GR 89696
    Agonist 99.88%
    GR 89696 is a highly selective κ2 opioid receptor agonist with potential to prevent pruritus.
    GR 89696
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