2. Signaling Pathways
  3. GPCR/G Protein
    Neuronal Signaling
  4. Dopamine Receptor

Dopamine Receptor

Dopamine Receptor

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Dopamine Receptors are a class of G protein-coupled receptors that are prominent in the vertebrate central nervous system (CNS). The neurotransmitter dopamine is the primary endogenous ligand for dopamine receptors. Dopamine receptors are implicated in many neurological processes, including motivation, pleasure, cognition, memory, learning, and fine motor control, as well as modulation of neuroendocrine signaling. Abnormal dopamine receptor signaling and dopaminergic nerve function is implicated in several neuropsychiatric disorders. Thus, dopamine receptors are common neurologic drug targets; antipsychotics are often dopamine receptor antagonists while psychostimulants are typically indirect agonists of dopamine receptors. There are at least five subtypes of dopamine receptors, D1, D2, D3, D4, and D5. The D1 and D5 receptors are members of the D1-like family of dopamine receptors, whereas the D2, D3 and D4receptors are members of the D2-like family.

Dopamine Receptor Isoform Specific Products:

Dopamine Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-203894
    Carpipramine
    		Antagonist
    Carpipramine (Defekton) is an antipsychotic agent that belongs to the iminodibenzyl class. Carpipramine is a potent dopamine antagonist which blocks alpha 1- and alpha 2-adrenoceptors. Carpipramine also has antagonist properties with respect to serotonin (5-ΗΤ2) receptors. Carpipramine exhibits antipsychotic and anti-depressant effects. Carpipramine can be used for the research of neurological disease, such as post-traumatic stress disorder (PTSD) and depression.
    Carpipramine
  • HY-108698
    Preclamol hydrochloride
    		Agonist 98.0%
    Preclamol hydrochloride ((-)-3-PPP hydrochloride) is a selective dopamine autoreceptor agonist. Preclamol hydrochloride has the potential for the research of schizophrenia.
    Preclamol hydrochloride
  • HY-W152604
    Cyclo(glycyl-L-leucyl)
    		Inhibitor 99.75%
    Cyclo(glycyl-L-leucyl) (Cyclo(leu-gly)), a neuropeptide, down-regulates dopamine (DA) receptors and attenuates dopaminergic supersensitivity. Cyclo(glycyl-L-leucyl) inhibits the development of Morphine induced pain relief as well as dopamine receptor supersensitivity in rats. Cyclo(glycyl-L-leucyl) has the potential for the prevention of tardive and/or L-DOPA (HY-N0304)-induced dyskinesias.
    Cyclo(glycyl-L-leucyl)
  • HY-103410
    Carmoxirole hydrochloride
    		Agonist 99.82%
    Carmoxirole hydrochloride (EMD 45609 hydrochloride) is a selective, peripherally acting dopamine D2 receptor agonist and exhibits antihypertensive activities in vivo.
    Carmoxirole hydrochloride
  • HY-103416
    A-77636 hydrochloride
    		Agonist ≥98.0%
    A-77636 hydrochloride is a potent, orally active, selective and long acting dopamine D1 receptor agonist (pKi=7.40; Ki=39.8 nM) with antiparkinsonian activity. A-77636 hydrochloride is functionally inactive at dopamine D2 receptor.
    A-77636 hydrochloride
  • HY-B1233A
    Octodrine hydrochloride
    		Activator ≥98.0%
    Octodrine (2-Amino-6-methylheptane) is a central nervous activator that increases the uptake of dopamine and noradrenaline. Octodrine is found to increase the pain threshold, cardiac rate (positive chronotropic effect) and myocardial contractility (positive inotropic effect).
    Octodrine hydrochloride
  • HY-103409
    ABT-724 trihydrochloride
    		Agonist 99.05%
    ABT-724 trihydrochloride is a potent and highly selective dopamine D4 receptor agonist with an EC50 of 12.4 nM for human dopamine D4 receptor. ABT-724 trihydrochloride is a potent partial agonist at the rat D4 (EC50 of 14.3 nM) and the ferret D4 receptor (EC50 of 23.2 nM), and has no effect on dopamine D1, D2, D3, or D5 receptors. ABT-724 trihydrochloride could be useful for the treatment of erectile dysfunction and has favorable side-effect profile.
    ABT-724 trihydrochloride
  • HY-126068
    Esamisulpride
    		Antagonist 99.04%
    Esamisulpride ((S)-Amisulpride) is the S-isomer of Amisulpride (HY-14545). Esamisulpride is a potent dopamine D2/D3 receptor antagonist with Ki values of 4.43 nM for D2R and 0.72 nM for D3R. Esamisulpride is a 5-HT7 receptor antagonist with a Ki of 900 nM. Esamisulpride can be used in the research of schizophrenia and depression.
    Esamisulpride
  • HY-116181
    YQA14
    		98.62%
    YQA14 is a high affinity dopamine D3 receptor antagonist. YQA14 is anti-opioid addiction agent. YQA14 inhibits Morphine/Cocaine-induced conditioned place preference (CPP) in animals.
    YQA14
  • HY-103412
    SKF 83959 hydrobromide
    		Agonist 99.86%
    SKF83959 hydrobromide is a potent and selective dopamine D1-like receptor partial agonist. SKF83959 hydrobromide Ki values for rat D1, D5, D2 and D3 receptors are 1.18, 7.56, 920 and 399 nM, respectively. SKF83959 hydrobromide is a potent allosteric modulator of sigma (σ)-1 receptor. SKF83959 hydrobromide belongs to benzazepine family and has improvements on cognitive dysfunction. SKF83959 hydrobromide can be used for the research of Alzheimer's disease and depression.
    SKF 83959 hydrobromide
  • HY-12987R
    Pimozide (Standard)
    		Antagonist
    Pimozide (Standard) is the analytical standard of Pimozide. This product is intended for research and analytical applications. Pimozide is a dopamine receptor antagonist, with Kis of 1.4 nM, 2.5 nM and 588 nM for dopamine D2, D3 and D1 receptors, respectively, and also has affinity at α1-adrenoceptor, with a Ki of 39 nM; Pimozide also inhibits STAT3 and STAT5.
    Pimozide (Standard)
  • HY-P3958
    BIM-23027
    		Agonist 99.76%
    BIM-23027 is a selective agonist of sst2 receptor (EC50=0.32 nM), with similar effect to somatostatin (SRIF), a cyclic tetradecapeptide. BIM-23027 stimulates dopamine release, which is mediated by a Glu-dependent mechanism.
    BIM-23027
  • HY-101102
    7-Hydroxy-DPAT hydrobromide
    		Inhibitor 99.84%
    7-Hydroxy-DPAT hydrobromide is a selective D3 dopamine receptor agonist, exhibiting significant pharmacological activity in modulating locomotor behavior and dopamine metabolism within the brain.
    7-Hydroxy-DPAT hydrobromide
  • HY-15296R
    Cabergoline (Standard)
    		Agonist
    Cabergoline (Standard) is the analytical standard of Cabergoline. This product is intended for research and analytical applications. Cabergoline is an ergot derived-dopamine D2-like receptor agonist that has high affinity for D2, D3, and 5-HT2B receptors (Ki=0.7, 1.5, and 1.2, respectively).
    Cabergoline (Standard)
  • HY-14958A
    Pardoprunox hydrochloride
    		Agonist 99.46%
    Pardoprunox (SLV-308) hydrochloride is a partial dopamine D2 and D3 receptor partial agonist and a serotonin 5-HT1A receptor agonist, with pEC50s of 8, 9.2, and 6.3, respectively.
    Pardoprunox hydrochloride
  • HY-14544R
    Quetiapine (Standard)
    		Antagonist
    Quetiapine (Standard) is the analytical standard of Quetiapine. This product is intended for research and analytical applications. Quetiapine (ICI204636) is a 5-HT receptors agonist with a pEC50 of 4.77 for human 5-HT1A receptor. Quetiapine is a dopamine receptor antagonist with a pIC50 of 6.33 for human D2 receptor. Quetiapine has moderate to high affinity for the human D2, HT1A, 5-HT2A, 5-HT2C receptor with pKis of 7.25, 5.74, 7.54, 5.55. Antidepressant and anxiolytic effects.
    Quetiapine (Standard)
  • HY-15780R
    Brexpiprazole (Standard)
    		Agonist
    Brexpiprazole (Standard) is the analytical standard of Brexpiprazole. This product is intended for research and analytical applications. Brexpiprazole (OPC-34712), an atypical orally active antipsychotic agent, is a partial agonist of human 5-HT1A and dopamine D2L receptor with Kis of 0.12 nM and 0.3 nM, respectively. Brexpiprazole is also a 5-HT2A receptor antagonist with a Ki of 0.47 nM. Brexpiprazole also shows potent antagonist activity at human noradrenergic α1B (Ki=0.17 nM) and α2C receptors (Ki=0.59 nM).
    Brexpiprazole (Standard)
  • HY-B1115AR
    Buspirone (Standard)
    		Antagonist
    Buspirone (Standard) is the analytical standard of Buspirone. This product is intended for research and analytical applications. Buspirone is an orally active 5-HT1A receptor agonist, and a dopamine D2 autoreceptorsant antagonist. Buspirone is an anxiolytic agent, and can be used for the generalized anxiety disorder research.
    Buspirone (Standard)
  • HY-B0549
    Flavoxate
    		Ligand 98.07%
    Flavoxate (Rec-7-0040 free base; DW61 free base) is an orally active L-type Ca2+ channel inhibitor and antispasmodic. Flavoxate inhibits cyclic adenosine monophosphate production by blocking voltage-dependent inward Ba2+ currents, regulating the brainstem micturition center, and stimulating G protein-coupled receptors. Consequently, Flavoxate induces relaxation of bladder smooth muscle and inhibits isovolumetric rhythmic contractions. Flavoxate effectively increases bladder capacity and alleviates symptoms of urgent urination frequency and pollakiuria caused by overactive bladder. Flavoxate can be used in research on overactive bladder and related voiding dysfunctions.
    Flavoxate
  • HY-B0031S
    Quetiapine-d4 fumarate
    		Antagonist ≥98.0%
    Quetiapine-d4 (fumarate) is the deuterium labeled Quetiapine fumarate. Quetiapine fumarate is a 5-HT receptors agonist and a dopamine receptor antagonist. Antidepressant and anxiolytic effects.
    Quetiapine-d<sub>4</sub> fumarate
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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