1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Opioid Receptor
  4. μ Opioid Receptor/MOR Isoform
  5. μ Opioid Receptor/MOR Antagonist

μ Opioid Receptor/MOR Antagonist

μ Opioid Receptor/MOR Antagonists (21):

Cat. No. Product Name Effect Purity
  • HY-76657A
    Alvimopan dihydrate
    Antagonist 98.68%
    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.
  • HY-P10177
    Acetalin-3
    Antagonist
    Acetalin-3 (Ac-RFMWMT-NH2), a hexapeptide, is a μ opioid receptor antagonist with high affinity for μ and κ3 opioid receptor, weak affinity for κ1 receptors and no affinity for κ2 receptors.
  • HY-155320
    Mu opioid receptor antagonist 7
    Antagonist
    Mu opioid receptor antagonist 7 (compound 24) is a potent and CNS permeable antagonist of µOR (µ-opioid receptor), with an IC50 of 29 ± 3.0 nM. Mu opioid receptor antagonist 7 can be used for the research of pain and opioid use disorder.
  • HY-P1335A
    CTAP TFA
    Antagonist 99.56%
    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.
  • HY-P1329A
    CTOP TFA
    Antagonist 99.84%
    CTOP TFA is a potent and highly selective μ-opioid receptor antagonist. CTOP TFA antagonizes the acute analgesic effect and hypermotility. CTOP TFA enhances extracellular dopamine levels in the nucleus accumbens. CTOP TFA dose-dependently enhances locomotor activity.
  • 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.
  • HY-107748
    5'-Guanidinonaltrindole hydrochloride
    Antagonist 98.72%
    5'-Guanidinonaltrindole (5'-GNTI) hydrochloride is a highly selective and potent κ-opioid receptor antagonist with a Ki of 0.18 nM for human κ-opioid receptor.
  • HY-101011
    Naloxonazine dihydrochloride
    Antagonist ≥98.0%
    Naloxonazine dihydrochloride is a specific μ-opioid receptor antagonist with an IC50 of 5.4 nM. Naloxonazine dihydrochloride also shows anti-leishmanial activity.
  • HY-115066
    GSK1521498 free base
    Antagonist 98.55%
    GSK1521498 free base is a potent and selective μ-opioid receptor (MOR) antagonist. GSK1521498 free base has the potential for disorders of compulsive consumption of food, alcohol, and agents.
  • HY-114072
    J-113397
    Antagonist ≥99.0%
    J-113397 is the first potent and selective nonpeptidyl ORL1 receptor antagonist (Ki: cloned human ORL1=1.8 nM) without any agonistic effects on other opioid receptors.
  • HY-76657
    Alvimopan monohydrate
    Antagonist 99.18%
    Alvimopan monohydrate (ADL 8-2698 monohydrate) is a potent, selective, orally active and reversible μ-opioid receptor antagonist, with an IC50 of 1.7 nM. Alvimopan monohydrate has selectivity for μ-opioid receptor (Ki=0.47 nM) over κ- and δ-opioid receptors (Kis=100, 12 nM, respectively). Alvimopan monohydrate can be used for the research of postoperative ileus.
  • HY-115066A
    GSK1521498 free base (hydrochloride)
    Antagonist
    GSK1521498 free base (hydrochloride) is a potent and selective μ-opioid receptor (MOR) antagonist. GSK1521498 free base (hydrochloride) is being used for the treatment of disorders of compulsive consumption of food, alcohol, and agents.
  • HY-P1335
    CTAP
    Antagonist
    CTAP is a potent, highly selective, and BBB penetrant μ opioid receptor antagonist, with an IC50 of 3.5 nM. CTAP displays over 1200-fold selectivity over δ opioid (IC50=4500 nM) and somatostatin receptors. CTAP can be used for the study of L-DOPA-induced dyskinesia (LID) and opiate overdose or addiction.
  • HY-144609
    Mu opioid receptor antagonist 4
    Antagonist
    Mu opioid receptor antagonist 4 (compound 31) is a potent and selective μ opioid receptor (MOR) antagonist with a Ki of 0.38 nM and an EC50 of 1.07 nM. Mu opioid receptor antagonist 4 has remarkable CNS antagonism against morphine, and precipitated fewer withdrawal symptoms than Naloxone. Mu opioid receptor antagonist 4 Mu opioid receptor antagonist 4 can be used for researching opioid use disorders (OUD).
  • HY-118949
    LY255582
    Antagonist
    LY255582 is a pan-opioid antagonist and has high affinity for mu, delta, and kappa receptors (Ki: 0.4 nM, 5.2, 2.0 nM respectively). LY255582 can decrease food intake and body weight. LY255582 can be used for the research of obesity.
  • HY-144610
    Mu opioid receptor antagonist 5
    Antagonist
    Mu opioid receptor antagonist 5 (compound NAP) is a selective and blood-brain barrier (BBB) penetrant μ opioid receptor (MOR) antagonist with an EC50 value of 1.14 nM and a Ki value of 0.37 nM. Mu opioid receptor antagonist 5 can be used for researching opioid use disorders (OUD).
  • HY-144608
    Mu opioid receptor antagonist 3
    Antagonist
    Mu opioid receptor antagonist 3 (compound 26) is a potent and selective μ opioid receptor (MOR) antagonist with a Ki of 0.24 nM and an EC50 of 0.54 nM. Mu opioid receptor antagonist 3 has remarkable CNS antagonism against morphine, and precipitated fewer withdrawal symptoms than Naloxone. Mu opioid receptor antagonist 3 can be used for researching opioid use disorders (OUD).
  • HY-144607
    Mu opioid receptor antagonist 2
    Antagonist
    Mu opioid receptor antagonist 2 (compound 25) is a potent, selective and blood-brain barrier (BBB) penetrant μ opioid receptor (MOR) antagonist with a Ki of 0.37 nM and an EC50 of 0.44 nM. Mu opioid receptor antagonist 2 has remarkable CNS antagonism against morphine, and precipitated fewer withdrawal symptoms than Naloxone. Mu opioid receptor antagonist 2 can be used for researching opioid use disorders (OUD).
  • 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).
  • HY-A0118AS
    Naloxegol-d5 oxalate
    Antagonist
    Naloxegol-d5 (oxalate) is deuterium labeled Naloxegol (oxalate). 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[1][2].