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-19231
    DPI-3290
    Agonist
    DPI-3290 (Org 41793) is a potent and specific opioid receptors agonist with Ki values of 0.18 nM, 0.46 nM, and 0.62 nM for δ-, μ-, and κ-opioid receptors, respectively. DPI-3290 is one of a series of novel centrally acting agents with potent antinociceptive activity.
    DPI-3290
  • HY-101199
    N-Benzylnaltrindole hydrochloride
    Antagonist
    N-Benzylnaltrindole hydrochloride is a potent δ2-selective opioid receptor antagonist. Benzylnaltrindole hydrochloride has a long duration of action in vivo than Naltriben (NTB). N-Benzylnaltrindole hydrochloride iserve as a useful tool in the pharmacologic characterization of δ-opioid receptor function.
    N-Benzylnaltrindole hydrochloride
  • HY-168351
    Fluorphine
    Ligand
    Fluorphine is an analogue of Brorphine and can bind to μ-opioid receptor (MOR) (Ki: 12.5 nM). Fluorphine has GTPγS binding (EC50: 75 nM) and βarrestin 2 recruitment (EC50: 377 nM) activity. Fluorphine induces respiratory depressant effects.
    Fluorphine
  • HY-101317A
    TAN-67
    Agonist
    TAN-67 (SB-205607) is a non-peptidic delta-opioid receptor agonist that exhibits significant antinociceptive activity in both diabetic and non-diabetic mice. TAN-67 demonstrates a marked and dose-dependent reduction in acetic acid-induced abdominal constrictions, with a notably stronger effect in diabetic mice compared to their non-diabetic counterparts. TAN-67's antinociceptive properties are primarily mediated through the activation of delta 1-opioid receptors, as indicated by the pronounced antagonism observed upon administration of a selective delta 1-opioid receptor antagonist.
    TAN-67
  • HY-107750A
    Cyprodime hydrochloride
    Antagonist
    Cyprodime hydrochloride is a highly selective μ-opioid receptor antagonist with Ki values of 5.4 nM, 244.6 nM and 2187 nM for μ-, δ- and κ-opioid receptors, respectively. Cyprodime hydrochloride has anti-depressant-like effect.
    Cyprodime hydrochloride
  • HY-126910
    Mesyl Salvinorin B
    Agonist
    Mesyl Salvinorin B is a potent and selective kappa opioid receptor (KOP-r) agonist. Mesyl Salvinorin B prevents the ADE (Alcohol deprivation effect) in mice. Mesyl Salvinorin B dose-dependently reduces alcohol intake and preference in CED (chronic escalation drinking) mice.
    Mesyl Salvinorin B
  • HY-P3515
    β-Lipotropin (61-69)
    Agonist
    β-Lipotropin (61-69) is a potent opioid agonist.
    β-Lipotropin (61-69)
  • HY-15122AR
    Sinomenine hydrochloride (Standard)
    Activator
    Sinomenine hydrochloride (Standard) is the analytical standard of Sinomenine hydrochloride. This product is intended for research and analytical applications. Sinomenine hydrochloride (Cucoline hydrochloride), an alkaloid extracted from Sinomenium acutum, is a blocker of the NF-κB activation. Sinomenine also is an activator of μ-opioid receptor.
    Sinomenine hydrochloride (Standard)
  • HY-P1594
    Dynorphin A (1-10)
    Agonist
    Dynorphin A (1-10) an endogenous opioid neuropeptide, binds to extracellular loop 2 of the κ-opioid receptor. Dynorphin A (1-10) also blocks NMDA-activated current with an IC50 of 42.0 μM.
    Dynorphin A (1-10)
  • HY-N7437
    Akuammidine
    Inhibitor
    Akuammidine, isolated from the seeds of Picralima nitida, shows a preference for μ-opioid binding sites with Ki values of 0.6, 2.4 and 8.6 μM at μ-, σ- and κ-opioid binding sites, respectively. Akuammidine possesses anti-inflammatory and anti-asthmatic properties.
    Akuammidine
  • HY-113929
    Loperamide oxide
    Loperamide oxide (R-58425) is a orally active prodrug of the Loperamide (HY-156131). Loperamide oxide incubation with the contents of the intestinal lumen inhibits fluid secretion under aerobic conditions.
    Loperamide oxide
  • HY-121415
    Herkinorin
    Agonist
    Herkinorin is a potent and selective agonist of µ opioid receptor with a Ki of 45 nM Herkinorin is widely used for pain research.
    Herkinorin
  • HY-144606
    Mu opioid receptor antagonist 1
    Antagonist
    Mu opioid receptor antagonist 1 (compound 19) is a selective and orally active μ opioid receptor (MOR) ligand with an Ki value of 0.58 nM and an EC50 of 1.15 nM. Orally administrating with Mu opioid receptor antagonist 1 increases intestinal motility during morphine-induced constipation. Mu opioid receptor antagonist 1 can be used for researching opioid-induced constipation (OIC).
    Mu opioid receptor antagonist 1
  • HY-121644
    Viminol
    Viminol is a centrally acting analgesic agent. Viminol also shows antitussive activity.
    Viminol
  • HY-P10176
    Acetalin-2
    Acetalin-2 is an opioid peptide with a sequence of Ac-Arg-Phe-Met-Trp-Met-Arg-NH2. Acetalin-2 is selectively bound to [3H]DAMGO with a Ki value of 93.3 nM.
    Acetalin-2
  • HY-160761
    K-Opioid receptor agonist-1
    Agonist
    K-Opioid receptor agonist-1 (Compound 5a) is an agonist for κ-Opioid receptor with Ki of 0.25 nM and EC50 of 2 nM. K-Opioid receptor agonist-1 is blood brain barrier (BBB) penetrate (brain/plasma ratios of 0.50 to 0.65). K-Opioid receptor agonist-1 exhibits anti-inflammatory activity in dermatitis models induced by Arachidonic acid (HY-109590) or oxazolidinone.
    K-Opioid receptor agonist-1
  • HY-P1316A
    Ac-RYYRWK-NH2 TFA
    Agonist
    Ac-RYYRWK-NH2 is a potent and selective partial agonist for the nociceptin receptor (NOP), [3H]Ac-RYYRWK-NH2 binds to rat cortical membranes ORL1 with a Kd of 0.071 nM, but has no affinity for μ-, κ- or δ-opioid receptors.
    Ac-RYYRWK-NH2 TFA
  • HY-117881
    CJ-15208
    CJ-15208 is a potent and selective κ-opioid receptor antagonist with significant opioid activity. CJ-15208 exhibited strong analgesic effects in the warm water tail withdrawal test in mice and was mediated through multiple opioid receptors. The stereoisomers of CJ-15208 exhibited different opioid activity characteristics, for example, one stereoisomer exhibited κ-opioid receptor antagonism, while the other exhibited δ-opioid receptor antagonism. All stereoisomers of CJ-15208 had no significant effects on respiration. The stereoisomers of CJ-15208 did not lead to the development of drug tolerance, which makes it potential in the further development of safe opioid analgesics.
    CJ-15208
  • HY-155319
    μ opioid receptor agonist 3
    Agonist
    μ opioid receptor agonist 3 (compound 20) is a potent μ opioid receptor (µOR) agonist with an EC50 of 0.87 nM. μ opioid receptor agonist 3 has the potential for pain and neuropsychiatric indications research.
    μ opioid receptor agonist 3
  • HY-W019787
    BAM-12P
    Activator
    BAM-12P, an endogenous opioid peptide, is a novel pro-Met-enkephalin. BAM-12P can activate human κ-opioid receptor (hKOR) with an EC50 of 101 nM and a pEC50 of 6.99. BAM-12P is a ligand for CXCR7 with an EC50 of 175 nM.
    BAM-12P
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