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-167915
    Fosopamine hydrochloride
    		Inhibitor
    Fosopamine hydrochloride serves as a dopamine receptor D agonist, making it a valuable tool for research on hypertension.
    Fosopamine hydrochloride
  • HY-B0410AR
    Pramipexole dihydrochloride hydrate (Standard)
    		Agonist
    Pramipexole (dihydrochloride hydrate) (Standard) is the analytical standard of Pramipexole (dihydrochloride hydrate). This product is intended for research and analytical applications. Pramipexole dihydrochloride hydrate is a selective and blood-brain barrier (BBB) penetrant dopamine D2-type receptor agonist, with Kis of 2.2 nM, 3.9 nM, 0.5 nM and 1.3 nM for D2-type receptor, D2, D3 and D4 receptors, respectively. Pramipexole dihydrochloride hydrate can be used for the research of Parkinson's disease (PD) and restless legs syndrome (RLS).
    Pramipexole dihydrochloride hydrate (Standard)
  • HY-103403
    (-)-OSU6162 hydrochloride
    		Antagonist
    (-)-OSU6162 (PNU96391) hydrochloride is a dopamine stabilizer. (-)-OSU6162 hydrochloride acts as partial agonist at 5-HT2A and is a dopamine D2 antagonist. (-)-OSU6162 hydrochloride can be used for the research of aggression and irritability.
    (-)-OSU6162 hydrochloride
  • HY-B1613AR
    Clebopride malate (Standard)
    		Antagonist
    Clebopride malate (Standard) is the analytical standard of Clebopride malate (HY-B1613A). This product is intended for research and analytical applications. Clebopride malate is an orally active dopamine Receptor antagonist. Clebopride malate acts on dopamine D2 receptors and has antiemetic and prokinetic effects. Clebopride malate can be used in the study of functional gastrointestinal disorders.
    Clebopride malate (Standard)
  • HY-118461
    PD 120697
    		Agonist
    PD 120697 is an orally active dopamine (DA) agonist. PD 120697 inhibits striatal DA synthesis, DA neuronal firing, spontaneous locomotor activity, and reverses Reserpine (HY-N0480)-induced depression.
    PD 120697
  • HY-121129
    Eticlopride
    		Antagonist
    Eticlopride, a selective dopamine D2‐like receptor antagonist, exhibits high affinity for dopamine D2, α1‐adrenergic, α2‐adrenergic, 5HT1, 5HT2 receptors with Kis of 0.09, 112, 699, 6220, and 830 nM, respectively. Eticlopride is an antipsychotic agent.
    Eticlopride
  • HY-115955
    Dopamine D3 receptor ligand-3
    Dopamine D3 receptor ligand-3 (compound 12C) is a potent D3 receptor ligand with a Ki of 3.6 nM. Dopamine D3 receptor ligand-3 have high selectivity for D3 over D2 (Ki=353 nM).
    Dopamine D3 receptor ligand-3
  • HY-W743888
    AL-LAD
    		Modulator
    AL-LAD (6-Allyl-6-nor-LSD) is an activator for 5-HT2A receptor with Ki of 3.4-8.1 nM. AL-LAD exhibits affinity for dopamine receptor D1 and dopamine receptor D2 with absolute affinitiesK0.5 of 189 nM and 12.3 nM. AL-LAD acts as psychoactive substance in mouse model.
    AL-LAD
  • HY-103407A
    PD 168568 dihydrochloride
    		Antagonist
    PD 168568 dihydrochloride is a orally active and potent dopamine receptor D4 (DRD4) antagonist. PD 168568 dihydrochloride contains an isoindolinone and is selective for the D4 receptor versus D2 and D3, with Ki values of 8.8, 1842, and 2682 nM, respectively. PD 168568 dihydrochloride can be used for glioblastoma (GBM) research.
    PD 168568 dihydrochloride
  • HY-B0032S
    Lurasidone-d8 hydrochloride
    		Antagonist
    Lurasidone-d8 (hydrochloride) is the deuterium labeled Lurasidone, which is an inhibitor of Dopamine D2, 5-HT2A, 5-HT7, 5-HT1A and noradrenaline α2C.
    Lurasidone-d<sub>8</sub> hydrochloride
  • HY-A0007S
    Rotigotine-d7 hydrochloride
    		Agonist
    Rotigotine-d7 (hydrochloride) is the deuterium labeled Rotigotine(N-0923), which is a dopamine D2 and D3 receptor agonist.
    Rotigotine-d<sub>7</sub> hydrochloride
  • HY-100539
    PD 128907
    		Inhibitor
    PD 128907 is a D3 receptor ligand with activities of activating dopamine receptors, inhibiting cell firing, and inhibiting dopamine release. The active (+) enantiomer of PD 128907 has high affinity and selectivity for rat D3 dopamine receptors. PD 128907 inhibits cell firing in the ventral tegmental area and substantia nigra pars compacta with EC50 values of 33nM and 38nM, respectively. PD 128907 also inhibits dopamine release in the caudate putamen with an EC50 of 66nM. However, the selective D2 receptor antagonist L-741,626 has high affinity for receptors activated by PD 128907, indicating that the effects of PD 128907 are more likely on D2 autoreceptors rather than D3 dopamine receptor subtypes.
    PD 128907
  • HY-42849
    Sultopride
    		Antagonist
    Sultopride (LIN-1418) is a selective antagonist of dopamine D2 receptor.
    Sultopride
  • HY-14546A
    Aripiprazole monohydrate
    		Agonist
    Aripiprazole (OPC-14597) monohydrate, an atypical antipsychotic, is a potent and high-affinity dopamine D2 receptor partial agonist. Aripiprazole monohydrate is an inverse agonist at 5-HT2B and 5-HT2A receptors and displays partial agonist actions at 5-HT1A, 5-HT2C, D3, and D4 receptors. Aripiprazole monohydrate can be used for the research of schizophrenia and COVID19.
    Aripiprazole monohydrate
  • HY-108236
    Naxagolide hydrochloride
    		Agonist
    Naxagolide hydrochloride is an agonist of D2. Naxagolide hydrochloride can be used in study Parkinsonism.
    Naxagolide hydrochloride
  • HY-14330
    ABT-724
    		Agonist
    ABT-724 is a potent and highly selective dopamine D4 receptor agonist with an EC50 of 12.4 nM for human dopamine D4 receptor. ABT-724 is a potent partial agonist at the rat D4 (EC50 of 14.3 nM) and the ferret D4 receptor (EC50 of 23.2 nM). ABT-724 has no effect on dopamine D1, D2, D3, or D5 receptors. ABT-724 could be useful for the treatment of erectile dysfunction and has favorable side-effect profile.
    ABT-724
  • HY-103406A
    PNU-177864 hydrochloride
    		Antagonist
    PNU-177864 is a potent, selective, orally active dopamine D3 receptor antagonist. PNU-177864 induces phospholipid metabolism in vivo and has anti-schizophrenia activity.
    PNU-177864 hydrochloride
  • HY-167648
    PD 158771
    		Agonist
    PD 158771 is an antipsychotic agent that functions as a partial agonist for D2 /D3 receptors (Ki = 42.0/13.7 nM) and as an agonist for 5-HT1A receptors (Ki = 2.6 nM). PD 158771 can be utilized in antipsychotic research.
    PD 158771
  • HY-17355S
    Pramipexole-d7 dihydrochloride
    		Agonist
    Pramipexole-d7 dihydrochloride is the deuterium labeled Pramipexole dihydrochloride. Pramipexole dihydrochloride is a selective and blood-brain barrier (BBB) penetrant dopamine D2-type receptor agonist, with Kis of 2.2 nM, 3.9 nM, 0.5 nM and 1.3 nM for D2-type receptor, D2, D3 and D4 receptors, respectively. Pramipexole dihydrochloride can be used for the research of Parkinson's disease (PD) and restless legs syndrome (RLS).
    Pramipexole-d<sub>7</sub> dihydrochloride
  • HY-10121S2
    Asenapine-13C,d3
    		Antagonist
    Asenapine-13C,d3 is 13C and deuterated labeled Asenapine (HY-10121). 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-<sup>13</sup>C,d<sub>3</sub>
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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