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-B0549S
    Flavoxate-d5
    		Ligand
    Flavoxate-d5 is deuterium labeled Flavoxate. Flavoxate hydrochloride (Rec-7-0040; DW61) is an orally active L-type Ca2+ channel inhibitor and antispasmodic. Flavoxate hydrochloride 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 hydrochloride induces relaxation of bladder smooth muscle and inhibits isovolumetric rhythmic contractions. Flavoxate hydrochloride effectively increases bladder capacity and alleviates symptoms of urgent urination frequency and pollakiuria caused by overactive bladder. Flavoxate hydrochloride can be used in research on overactive bladder and related voiding dysfunctions.
    Flavoxate-d<sub>5</sub>
  • HY-135487
    Sibenadet
    		Agonist
    Sibenadet (AR-C68397AA free base) is a dual dopamine D2/β2-adrenoceptor agonist with selective β2-adrenoceptor agonism. Sibenadet inhibits capsaicin-induced plasma protein extravasation in rat trachea. Sibenadet suppresses edema from sensory nerve fiber activation by activating β2-adrenoceptor. Sibenadet is promising for research of chronic obstructive pulmonary disease (COPD).
    Sibenadet
  • HY-106646
    CQP-201403
    		Agonist
    CQP-201403 is a dopamine receptor agonist. CQP-201403 can be used for the research of neurological disease.
    CQP-201403
  • HY-19372
    SSR-181507 hydrochloride
    		Antagonist
    SSR-181507 hydrochloride is a dopamine D2 receptor antagonist and 5-HT1A receptor agonist. SSR-181507 antagonizes Apomorphine (HY-12723)-induced climbing in mice and stereotypies in rats. SSR-181507 hydrochloride can be used in the research of depression and anxiety.
    SSR-181507 hydrochloride
  • HY-114549
    (R)-SCH-23982 hydrochloride
    		Control
    (R)-SCH-23982 hydrochloride is the R-enantiomer of SCH-23982 hydrochloride. SCH-23982 hydrochloride is a selective dopamine D1 receptor antagonist. (R)-SCH-23982 hydrochloride is promising for research of central nervous system disorders such as schizophrenia, Parkinson’s disease.
    (R)-SCH-23982 hydrochloride
  • HY-123473
    SB-414796
    		Antagonist
    SB-414796 is a selective, orally active and cross the blood-brain barrier dopamine D3 receptor antagonist with Ki values of 4, 400 nM for D3, D2, respectively.
    SB-414796
  • HY-149386
    D3R/MOR antagonist 1
    		Antagonist
    D3R/MOR antagonist 1 (Compound 114) is a D3R/MOR antagonist (Ki: 46.5 nM and 691 nM respectively). D3R/MOR antagonist 1 has the potential to produce analgesic effects through MOR partial agonism, reduce opioid-misuse liability via D3R antagonism.
    D3R/MOR antagonist 1
  • HY-16567S
    Asenapine-13C,d3 hydrochloride
    		Antagonist
    Asenapine-13C,d3 (hydrochloride) is the 13C- and deuterium labeled Asenapine (hydrochloride). Asenapine hydrochloride, an antipsychotic, is a 5-HT (1A, 1B, 2A, 2B, 2C, 5A, 6, 7) and Dopamine (D2, D3, D4) receptor antagonist with Ki values of 0.03-4.0 nM for 5-HT and 1.3, 0.42, 1.1 nM for Dopamine receptor, respectively.
    Asenapine-<sup>13</sup>C,d<sub>3</sub> hydrochloride
  • HY-181721
    Dopamine D3 receptor agonist 1
    		Activator
    Dopamine D3 receptor agonist 1 is a dopamine D3 Receptor agonist with a Ki value of 0.268 nM. Dopamine D3 receptor agonist 1 exhibits metabolic stability in rat liver microsomes. Dopamine D3 receptor agonist 1 can be used to study severe mental disorders comorbid with substance use disorders.
    Dopamine D3 receptor agonist 1
  • HY-W704363
    Pimozide-d5
    Pimozide-d5 (R6238-d5) is the deuterium labeled Pimozide (HY-12987). 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>
  • HY-12697A
    NGB 2904 hydrochloride
    		Antagonist
    NGB 2904 hydrochloride is a potent, selective, orally active and brain-penetrated antagonist of dopamine D3 receptor, with a Ki of 1.4 nM. NGB 2904 hydrochloride shows selectivity for D3 over D2, 5-HT2, α1, D4, D1 and D5 receptors (Kis=217, 223, 642, >5000, >10000 and >10000 nM, respectively). NGB 2904 hydrochloride antagonizes Quinpirole-stimulated mitogenesis.
    NGB 2904 hydrochloride
  • HY-173431
    Dopamine D4 receptor ligand 3
    		Antagonist
    Dopamine D4 receptor ligand 3 (Compound 16) is a dopamine D4 receptor (D4R) antagonist (pKi: 8.86). Dopamine D4 receptor ligand 3 has pIC50 values of 5.78, 5.55, and 6.17 for Go, Gi, and βArr2 sensors in HEK-293T cells, respectively. Dopamine D4 receptor ligand 3 inhibits the viability of three human glioma cell lines, U87 MG, T98G, and U251 MG. Dopamine D4 receptor ligand 3 induces ROS production and mitochondrial dysfunction in glioma cells.
    Dopamine D4 receptor ligand 3
  • HY-W751669
    9-Fluorenol-d9
    9-Fluorenol-d9 (9-Hydroxyfluorene-d9) is the deuterium labeled 9-Fluorenol (HY-W016388). 9-Fluorenol (9-Hydroxyfluorene; compound 3) is a dopamine (DAT) inhibitor with IC50 value of 9 μM. 9-Fluorenol is a major metabolite of compound developed as a wake promoting agent. 9-Fluorenol shows wake promotion activity in vivo.
    9-Fluorenol-d<sub>9</sub>
  • HY-W744038
    Zotepine-d6
    Zotepine-d6 is the deuterium labeled Zotepine (HY-103093). Zotepine, an antipsychotic agent, is a potent antagonist of 5-HT2A, 5-HT2C, Histamine H1, α1-adrenergic and Dopamine D2 receptors, with Kds of 2.6 nM, 3.2 nM, 3.3 nM, 7.3 nM and 8 nM, respectively. Zotepine exhibits antidepressive and anxiolytic effects in vivo.
    Zotepine-d<sub>6</sub>
  • HY-14542S
    Ziprasidone-d8
    		Antagonist 98%
    Ziprasidone-d88 is deuterium labeled Ziprasidone, which is a combined 5-HT (serotonin) and dopamine receptor antagonist which exhibits potent effects of antipsychotic activity.
    Ziprasidone-d<sub>8</sub>
  • HY-106100
    Roxindole
    		Agonist
    Roxindole (EMD 49980), an indot-alkyl-pipenidine, is a potent agonist at dopamine autoreceptors, with an affinity for the D2-like subtype in the low nanomolar range. Roxindole can be used for the research of positive and negative schizophrenic symptoms. Roxindole is a 5-HT1A agonist and 5-HT uptake inhibitor. Antipsychotic and antidepressant activities.
    Roxindole
  • HY-12701
    U-99194
    		Antagonist
    U-99194 (PNU-99194) is a selective, potent dopamine D3 receptor antagonist. U-99194 inhibits the activation of D3 receptor mediated by endogenously released dopamine or exogenous D3 agonists. U-99194 abrogates the IPSC-suppressive effect of the D3 agonist PD 128907 in rat hippocampal slices. U-99194 significantly suppresses Nicotine (HY-127019)-induced tremor in mice. U-99194 can be used for the study of dopamine D3 receptor-mediated motor disorders, particularly kinetic tremors.
    U-99194
  • HY-B0411AR
    Domperidone monomaleate (Standard)
    		Inhibitor
    Domperidone (monomaleate) (Standard) is the analytical standard of Domperidone (monomaleate). This product is intended for research and analytical applications. Domperidone (R33812) monomaleate is an orally active and selective dopamine-2 receptor antagonist. Domperidone monomaleate 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 monomaleate (Standard)
  • HY-105657
    Flupenthixol decanoate
    		Antagonist
    Flupenthixol decanoate is a dopamine D2 receptor antagonist with antipsychotic effects. Flupenthixol decanoate can be used for schizophrenia and depression research.
    Flupenthixol decanoate
  • HY-115954
    Dopamine D3 receptor ligand-2
    Dopamine D3 receptor ligand-2 (compound 8) is a potent D3 receptor ligand with a Ki of 11.4 nM. Dopamine D3 receptor ligand-2 have high selectivity for D3 over D2 (Ki=1228 nM).
    Dopamine D3 receptor ligand-2
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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