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-W179151
    N-Octanoyl dopamine
    N-Octanoyl dopamine is superior to dopamine in protecting graft contractile function when administered to the heart transplant recipients from brain-dead donors. N-Octanoyl dopamine inhibits cytokine production in activated T-cells and diminishes MHC-class-II expression as well as adhesion molecules in IFNγ-stimulated endothelial cells.
    N-Octanoyl dopamine
  • HY-B0411S
    Domperidone-d6
    		Inhibitor
    Domperidone-d6 is the deuterium labeled Domperidone. Domperidone (R33812) is a selective dopamine-2 receptor antagonist. Domperidone acts as an antiemetic and a prokinetic agent through its effects on the chemoreceptor trigger zone and motor function of the stomach and small intestine.
    Domperidone-d<sub>6</sub>
  • HY-B1077R
    Penfluridol (Standard)
    		Inhibitor
    Penfluridol (Standard) is the analytical standard of Penfluridol. This product is intended for research and analytical applications. Penfluridol (R-16341) is a potent, long-acting, first-generation, oral diphenylbutylpiperidine antipsychotic agent by targeting D2-like dopamine receptor. Penfluridol effectively inhibits TNFα-induced NF-κB activation and alleviates the severity of arthritis and colitis in vivo. Penfluridol is a Ca2+-calmodulin inhibitor. Penfluridol induces apoptosis and autophagy. Penfluridol is used for chronic schizophrenia, acute psychosis, Tourette syndrome and autoimmune diseases. Penfluridol inhibites the growth of E. faecalis planktonic cells with the MIC of 7.81 μg/ml.
    Penfluridol (Standard)
  • HY-12987S1
    Pimozide-d5 N-Oxide
    		Antagonist
    Pimozide-d5 N-Oxide is the deuterium labeled Pimozide. 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-d<sub>5</sub> N-Oxide
  • HY-14541A
    Olanzapine hydrochloride
    		Antagonist
    Olanzapine hydrochloride is a selective, orally active monoaminergic antagonist with high affinity binding to serotonin H1, 5HT2A/2C, 5HT3, 5HT6 (Ki=7, 4, 11, 57, and 5 nM, respectively), dopamine D1-4 (Ki=11 to 31 nM), muscarinic M1-5 (Ki=1.9-25 nM), and adrenergic α1 receptor (Ki=19 nM). Olanzapine hydrochloride is an atypical antipsychotic.
    Olanzapine hydrochloride
  • HY-14325R
    L-745870 (Standard)
    		Antagonist
    L-745870 (Standard) is the analytical standard of L-745870. This product is intended for research and analytical applications. L-745870 is a potent, selective, brain-penetrant and orally active dopamine D4 receptor antagonist with a Ki of 0.43 nM. L-745870 shows weaker affinity for D2 (Ki of 960 nM) and D3 (Ki of 2300 nM) receptors, and exhibits moderate affinity for 5-HT2 receptors, sigma sites and α-adrenoceptors.
    L-745870 (Standard)
  • HY-12707B
    Piribedil maleate
    		Agonist
    Piribedil maleate is a potent and orally active dopamine D2 and dopamine D3 agonist. Piribedil maleate is also a α2-adrenoceptors antagonist. Piribedil maleate can inhibit MLL1 methyltransferase activity (EC50: 0.18 μM). Piribedil maleate has the potential for the research of parkinson's disease, circulatory disorders, cancers.
    Piribedil maleate
  • HY-129103
    A-412997
    		Agonist
    A-412997 is a selective Dopamine D4 agonist with Ki values of 12 and 7.9 nM for the rat and human receptors. A-412997 improves short term memory and cognitive properties in rodent models.
    A-412997
  • HY-W342779
    4-Bromoamphetamine hydrochloride
    		99.9%
    4-Bromoamphetamine hydrochloride is an amphetamine derivative which acts as a serotonin-norepinephrine-dopamine releasing agent (SNDRA) and produces stimulant effects. 4-Bromoamphetamine hydrochloride is highly neurotoxic, producing long-term depletion of serotonin.
    4-Bromoamphetamine hydrochloride
  • HY-122979
    (+)-Butaclamol hydrochloride
    (+)-Butaclamol hydrochloride is a neuroleptic agent with dopamine receptor-blocking activity. (+)-Butaclamol hydrochloride is (+)- enantiomer of butaclamol.
    (+)-Butaclamol hydrochloride
  • HY-116578S
    Metopimazine-d6
    		Antagonist
    Metopimazine-d6 (EXP999-d6; RP9965-d6) is the deuterium labeled Metopimazine (HY-116578). Metopimazine (EXP999; RP9965) is a phenothiazine, orally available, selective dopamine D2 receptor antagonist that does not penetrate the blood-brain barrier. Metopimazine blocks dopamine D2 receptors in the chemoreceptor trigger zone and the periphery, thereby inhibiting nausea and vomiting. Metopimazine is indicated for chemotherapy-induced nausea and vomiting, and has low central side effects due to its poor brain penetration. The use of metopimazine in acute gastroenteritis may have potential risks.
    Metopimazine-d<sub>6</sub>
  • HY-101747A
    ADR 851
    		Antagonist
    ADR 851 is a dopamine D2 receptor antagonist,and can be used in research on antiemetics.
    ADR 851
  • HY-10121R
    Asenapine (Standard)
    		Antagonist
    Asenapine (Standard) is the analytical standard of Asenapine. This product is intended for research and analytical applications. Asenapine (Org 5222), an atypical antipsychotic, is an antagonist of serotonin receptors (pKi: 8.4-10.5), adrenoceptors (pKi: 8.9-9.5), dopamine receptors (pKi: 8.9-9.4) and histamine receptors (pKi: 8.2-9.0). Asenapine can be used in the research of schizophrenia and bipolar disorder.
    Asenapine (Standard)
  • HY-21098
    PD-168077
    		Agonist
    PD-168077 is a selective dopamine D4 receptor agonist, with a Ki of 9 nM.
    PD-168077
  • HY-101384AR
    Ro 10-5824 dihydrochloride (Standard)
    		Agonist
    Ro 10-5824 (dihydrochloride) (Standard) is the analytical standard of Ro 10-5824 (dihydrochloride) (HY-101384A). This product is intended for research and analytical applications. Ro 10-5824 dihydrochloride is a selective dopamine D4 receptor partial agonist, with Ki of 5.2 nM.
    Ro 10-5824 dihydrochloride (Standard)
  • HY-13575R
    Blonanserin (Standard)
    		Antagonist
    Blonanserin (Standard) is the analytical standard of Blonanserin. This product is intended for research and analytical applications. Blonanserin (AD-5423) is a potent and orally active 5-HT2A (Ki=0.812 nM) and dopamine D2 receptor (Ki =0.142 nM) antagonist. Blonanserin is usually acts as an atypical antipsychotic agent and can be used for the research of extrapyramidal symptoms, excessive sedation, or hypotension.
    Blonanserin (Standard)
  • HY-17390R
    Loxapine (Standard)
    		Inhibitor
    Loxapine (Standard) is the analytical standard of Loxapine. This product is intended for research and analytical applications. Loxapine is an orally active dopamine inhibitor, 5-HT receptor antagonist and also a dibenzoxazepine anti-psychotic agent.
    Loxapine (Standard)
  • HY-B2169R
    Melperone (Standard)
    		Antagonist
    Melperone (Standard) is the analytical standard of Melperone (HY-B2169). This product is intended for research and analytical applications. Melperone is a butyrophenone with atypical antipsychotic properties. Melperone is a multireceptor antagonist with Kds of 102 nM, 180 nM, 180 nM, and 150 nM for 5-HT2A, dopamine D2, α1-adrenergic, and α2-adrenergic receptors, respectively. Melperone has weak binding to histamine H1, 5-HT2C, 5-HT1A, 5-HT1D, and muscarinic receptors, with Kd values ​​of 580 nM, 2100 nM, 2200 nM, 3400 nM, >10000 nM, respectively. Melperone is also a CYP2D6 inhibitor. Melperone can be used for the study of schizophrenia, and agitation in the elderly.
    Melperone (Standard)
  • HY-B2169S2
    Melperone-d4 hydrochloride
    		Antagonist 99.84%
    Melperone-d4 hydrochloride is the deuterium labeled Melperone hydrochloride (HY-103109). Melperone hydrochloride is a butyrophenone with atypical antipsychotic properties. Melperone hydrochloride is a multireceptor antagonist with Kds of 102 nM, 180 nM, 180 nM, and 150 nM for 5-HT2A, dopamine D2, α1-adrenergic, and α2-adrenergic receptors, respectively. Melperone hydrochloride has weak binding to histamine H1, 5-HT2C, 5-HT1A, 5-HT1D, and muscarinic receptors, with Kd values ​​of 580 nM, 2100 nM, 2200 nM, 3400 nM, >10000 nM, respectively. Melperone hydrochloride is also a CYP2D6 inhibitor. Melperone hydrochloride can be used for the study of schizophrenia, and agitation in the elderly.
    Melperone-d<sub>4</sub> hydrochloride
  • HY-17410A
    Iloperidone hydrochloride
    		Antagonist
    Iloperidone hydrochloride (HP 873 hydrochloride) is a D2/5-HT2 receptor antagonist. Iloperidone hydrochloride is an atypical antipsychotic for the schizophrenia symptoms.
    Iloperidone hydrochloride
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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