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

Opioid Receptor Inhibitors

μ Opioid Receptor/MOR

κ Opioid Receptor/KOR

δ Opioid Receptor/DOR

NOP Receptor/ORL1

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Opioid Receptor Inhibitors, Agonists, Antagonists, Activators & Modulators
Product Name μ Opioid Receptor/MOR κ Opioid Receptor/KOR δ Opioid Receptor/DOR NOP Receptor/ORL1 Purity
DAMGO
μ Opioid Receptor/MOR
      99.90%
Matrine
μ Opioid Receptor/MOR
κ Opioid Receptor/KOR
    ≥98.0%
Sinomenine
μ Opioid Receptor/MOR
      99.94%
Sinomenine hydrochloride
μ Opioid Receptor/MOR
      98.67%
Norbinaltorphimine dihydrochloride  
κ Opioid Receptor/KOR
    98.17%
Dynorphin A  
κ Opioid Receptor/KOR
    98.06%
SNC80    
δ Opioid Receptor/DOR
  99.44%
β-Endorphin, human    
δ Opioid Receptor/DOR
 
JTC-801      
NOP Receptor/ORL1
98.91%
BMS-986122
μ Opioid Receptor/MOR
      99.94%
Alvimopan dihydrate
μ Opioid Receptor/MOR
      98.66%
DPDPE    
δ Opioid Receptor/DOR
  99.83%
LY2940094      
NOP Receptor/ORL1
99.91%
Dermorphin
μ Opioid Receptor/MOR
      99.96%
Ro 64-6198      
NOP Receptor/ORL1
99.82%
CTAP TFA
μ Opioid Receptor/MOR, IC50: 3.5 nM
 
δ Opioid Receptor/DOR, IC50: 4500 nM
  99.56%
PZM21
μ Opioid Receptor/MOR
      99.57%
Corydaline
μ Opioid Receptor/MOR
      99.70%
Navacaprant
μ Opioid Receptor/MOR, IC50: 110 nM
κ Opioid Receptor/KOR, IC50: 0.8 nM
δ Opioid Receptor/DOR, IC50: 6500 nM
  99.97%
Endomorphin 1
μ Opioid Receptor/MOR, Ki: 1.11 nM
      99.92%
SB-612111 hydrochloride      
NOP Receptor/ORL1
99.26%
N-Desmethylclozapine    
δ Opioid Receptor/DOR
  98.99%
Morphiceptin
μ Opioid Receptor/MOR
      98.29%
Deltorphin I    
δ Opioid Receptor/DOR
 
[Met5]-Enkephalin, amide TFA    
δ Opioid Receptor/DOR
  99.58%
Naldemedine tosylate
μ Opioid Receptor/MOR
     
U-69593  
κ Opioid Receptor/KOR
    99.73%
Dynorphin A (1-8)  
κ Opioid Receptor/KOR
    99.88%
CTOP TFA
μ Opioid Receptor/MOR
      99.84%
Porcine dynorphin A(1-13)  
κ Opioid Receptor/KOR
    99.81%
Dynorphin A (1-10) (TFA)  
κ Opioid Receptor/KOR
    98.19%
Adrenorphin
μ Opioid Receptor/MOR
     
GSK1521498 free base
μ Opioid Receptor/MOR
      98.55%
Deltorphin 2 TFA    
δ Opioid Receptor/DOR
  99.88%
ADL-5859 hydrochloride    
δ Opioid Receptor/DOR
  99.77%
Endomorphin 1 acetate
μ Opioid Receptor/MOR, Ki: 1.11 nM
      99.92%
CYM51010
μ Opioid Receptor/MOR
      99.12%
Sec-O-Glucosylhamaudol
μ Opioid Receptor/MOR
      99.81%
Naloxonazine dihydrochloride
μ Opioid Receptor/MOR, IC50: 5.4 nM
      98.1%
ICI 199441  
κ Opioid Receptor/KOR
    99.39%
(±)-J-113397      
NOP Receptor/ORL1
98.59%
Trimebutine
μ Opioid Receptor/MOR
      99.40%
MT-7716 hydrochloride      
NOP Receptor/ORL1
99.06%
J-113397
μ Opioid Receptor/MOR, Ki: 1000 ± 160 nM
κ Opioid Receptor/KOR, Ki: 640 ± 87 nM
δ Opioid Receptor/DOR, Ki: >10000 nM
NOP Receptor/ORL1, Ki: 1.8 ± 0.24 nM
99.00%
Asimadoline hydrochloride  
κ Opioid Receptor/KOR
    99.82%
AR-M 1000390 hydrochloride    
δ Opioid Receptor/DOR
  99.05%
LY255582
μ Opioid Receptor/MOR, Ki: 0.4 nM
κ Opioid Receptor/KOR, Ki: 2.0 nM
δ Opioid Receptor/DOR, Ki: 5.2 nM
  ≥98.0%
BMS-986121
μ Opioid Receptor/MOR
      98.89%
Bevenopran
μ Opioid Receptor/MOR
      99.82%
β-Endorphin, equine TFA
μ Opioid Receptor/MOR
 
δ Opioid Receptor/DOR
 
DIPPA hydrochloride  
κ Opioid Receptor/KOR
    99.7%
[D-Ala2]leucine-enkephalin    
δ Opioid Receptor/DOR
  98.64%
Nociceptin (1-13), amide TFA      
NOP Receptor/ORL1
99.67%
Deltorphin 2    
δ Opioid Receptor/DOR
 
5'-Guanidinonaltrindole hydrochloride
human μ-opioid receptor, Ki: 36.9 nM
human μ-opioid receptor, pA2: 8.49
      98.72%
TAN-67 dihydrobromide    
δ Opioid Receptor/DOR, Ki: 0.647 nM
  ≥99.0%
DPDPE TFA    
δ Opioid Receptor/DOR
  99.94%
Gluten Exorphin C
μ Opioid Receptor/MOR
 
δ Opioid Receptor/DOR
  98.97%
Cebranopadol ((1α,4α)stereoisomer)      
NOP Receptor/ORL1
Dalargin    
δ Opioid Receptor/DOR
  99.52%
Alvimopan monohydrate
μ Opioid Receptor/MOR
      99.18%
GSK1521498 free base (hydrochloride)
μ Opioid Receptor/MOR
     
CTAP
μ Opioid Receptor/MOR, IC50: 3.5 nM
 
δ Opioid Receptor/DOR, IC50: 4500 nM
 
SC13
μ Opioid Receptor/MOR
     
SalA-VS-07  
κ Opioid Receptor/KOR
   
NAQ
μ Opioid Receptor/MOR, Ki: 0.55 nM
κ Opioid Receptor/KOR, Ki: 26.45 nM
δ Opioid Receptor/DOR, Ki: 132.50 nM
 
N-Desmethylclozapine-d8    
δ Opioid Receptor/DOR
 
Mu opioid receptor antagonist 4
μ Opioid Receptor/MOR
     
Bilaid C
human μ-opioid receptor, Ki: 210 nM
     
Dermorphin TFA
μ Opioid Receptor/MOR
     
DALDA
μ Opioid Receptor/MOR, Ki: 1.69 nM
κ Opioid Receptor/KOR, Ki: 4230 nM
δ Opioid Receptor/DOR, Ki: 19200 nM
 
KOR/DOR agonist 1
μ Opioid Receptor/MOR, Ki: 0.93 nM
κ Opioid Receptor/KOR, Ki: 0.14 nM
δ Opioid Receptor/DOR, Ki: 0.2 nM
 
Acetalin-3
μ Opioid Receptor/MOR
     
DS34942424
μ Opioid Receptor/MOR
     
Bilaid A1e
μ Opioid Receptor/MOR, Ki: 750 nM
     
LY2048978
μ Opioid Receptor/MOR, Ki: 0.287 nM
κ Opioid Receptor/KOR, Ki: 0.471 nM
δ Opioid Receptor/DOR, Ki: 1.05 nM
 
Mu opioid receptor antagonist 5
μ Opioid Receptor/MOR
     
(N-Me-Tyr1,N-Me-Arg7,D-Leu-NHEt8)-Dynorphin A (1-8)  
κ Opioid Receptor/KOR
   
Mu opioid receptor antagonist 3
μ Opioid Receptor/MOR
     
KOR agonist 2  
κ Opioid Receptor/KOR, Ki: 1.9 nM
   
AT-121 hydrochloride
μ Opioid Receptor/MOR
     
MT-7716 free base      
NOP Receptor/ORL1
Mu opioid receptor antagonist 2
μ Opioid Receptor/MOR
     
Dynorphin A TFA  
κ Opioid Receptor/KOR
   
PIPE-3297  
κ Opioid Receptor/KOR, EC50: 1.1 nM
   
[DPen2, Pen5] Enkephalin    
δ Opioid Receptor/DOR
 
GSK1521498
μ Opioid Receptor/MOR
     
Anrikefon  
κ Opioid Receptor/KOR
   
ZP 120C      
NOP Receptor/ORL1
KOR agonist 1
μ Opioid Receptor/MOR, EC50: 701.2 nM
κ Opioid Receptor/KOR, EC50: 3.4 nM
δ Opioid Receptor/DOR, EC50: 1649 nM
 
[Met5]-Enkephalin, amide    
δ Opioid Receptor/DOR
 
Mu opioid receptor antagonist 7
μ Opioid Receptor/MOR, IC50: 29 ± 3.0 nM
     
DPI-3290  
κ Opioid Receptor/KOR
δ Opioid Receptor/DOR
 
N-Benzylnaltrindole hydrochloride    
δ Opioid Receptor/DOR
 
Dynorphin A (1-10)  
κ Opioid Receptor/KOR
   
Akuammidine  
κ Opioid Receptor/KOR
   
Mu opioid receptor antagonist 1
μ Opioid Receptor/MOR
     
K-Opioid receptor agonist-1
μ Opioid Receptor/MOR, Ki: 43 nM
κ Opioid Receptor/KOR, Ki: 0.25 nM
δ Opioid Receptor/DOR, Ki: 58 nM
 
Ac-RYYRWK-NH2 TFA      
NOP Receptor/ORL1
μ opioid receptor agonist 3
μ Opioid Receptor/MOR, EC50: 0.82 nM
     
BAM-12P  
human κ-opioid receptor (hKOR), EC50: 101 nM
human κ-opioid receptor (hKOR), pEC50: 6.99
   
Naloxegol-d5 oxalate
μ Opioid Receptor/MOR
     
UFP-101      
NOP Receptor/ORL1
Acetalin-1
μ Opioid Receptor/MOR
     
CTOP
μ Opioid Receptor/MOR
     
Axelopran
human μ-opioid receptor, pKi: 9.8
guinea pig κ-opioid receptor, pKi: 9.9
δ Opioid Receptor/DOR, pKi: 8.8
 
δ opioid receptor antagonist 1    
δ Opioid Receptor/DOR, Ki: 1.7 nM
 
MOR agonist-2
μ Opioid Receptor/MOR
     
α-Endorphin (human)
μ Opioid Receptor/MOR
     
Dermorphin Analog
μ Opioid Receptor/MOR
     
DSLET    
δ Opioid Receptor/DOR
 
NPFF1-R antagonist 1
μ Opioid Receptor/MOR, Ki: 3560 ± 364 nM
κ Opioid Receptor/KOR, Ki: 1390 ± 147 nM
δ Opioid Receptor/DOR, Ki: 1540 ± 132 nM
 
AT-076
μ Opioid Receptor/MOR, IC50: 1.67 nM
κ Opioid Receptor/KOR, IC50: 1.14 nM
δ Opioid Receptor/DOR, IC50: 19.6 nM
NOP Receptor/ORL1, IC50: 1.75 nM
RX809055AX
μ Opioid Receptor/MOR
 
δ Opioid Receptor/DOR
 
R-84760  
κ Opioid Receptor/KOR
   
CHIR 4531
μ Opioid Receptor/MOR, Ki: 6 nM
     
Picraline
μ Opioid Receptor/MOR, Ki: 132 μM
κ Opioid Receptor/KOR, Ki: 2.38 μM
δ Opioid Receptor/DOR, Ki: 98.8 μM
 
Endomorphin 2
μ Opioid Receptor/MOR