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

Dopamine Receptor

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-111210
    Pridopidine hydrochloride
    Antagonist
    Pridopidine (ACR16) hydrochloride, a dopamine (DA) stabilizer, acts as a low affinity dopamine D2 receptor (D2R) antagonist. Pridopidine exerts high affinity towards sigma 1 receptor (S1R) with Ki between 70 and 80 nM, which is ~100-fold higher than its affinity toward D2R.
    Pridopidine hydrochloride
  • HY-B0965S
    Thioridazine 2-Sulfone-d3
    Thioridazine-d3 2-Sulfone is the deuterium labeled Thioridazine hydrochloride. Thioridazine hydrochloride, an orally active antagonist of the dopamine receptor D2 family proteins, exhibits potent anti-psychotic and anti-anxiety activities. Thioridazine hydrochloride is also a potent inhibitor of PI3K-Akt-mTOR signaling pathways with anti-angiogenic effect. Thioridazine hydrochloride shows antiproliferative and apoptosis induction effects in various types of cancer cells, with specificity on targeting cancer stem cells (CSCs).
    Thioridazine 2-Sulfone-d<sub>3</sub>
  • HY-103093R
    Zotepine (Standard)
    Antagonist
    Zotepine (Standard) is the analytical standard of Zotepine. This product is intended for research and analytical applications. 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 (Standard)
  • HY-103430AR
    SKF-83566 (Standard)
    Antagonist
    SKF-83566 (Standard) is the analytical standard of SKF-83566 (HY-103430A). This product is intended for research and analytical applications. SKF-83566 is a potent, blood-brain permeable and orally active D1-like dopamine receptor (D1DR) antagonist and a weaker competitive antagonist at the vascular 5-HT2 receptor (Ki=11 nM). SKF-83566 is a competitive DAT (dopamine transporter) inhibitor with an IC50 of 5.7 μM. SKF-83566 also shows selective inhibition for adenylyl cyclase 2 (AC2) over AC1 and AC5 in the isolated rabbit thoracic aorta. SKF-83566 can be used for research of parkinson’s disease and nicotine craving alleviation.
    SKF-83566 (Standard)
  • HY-10349AR
    WAY-100635 maleate (Standard)
    Agonist
    WAY-100635 (maleate) (Standard) is the analytical standard of WAY-100635 (maleate). This product is intended for research and analytical applications. WAY-100635 maleate is a potent and selective 5-hydroxytryptamine 1A (5-HT1A) receptor antagonist with an IC50 value of 0.91 nM and Ki value of 0.39 nM. WAY-100635 maleate has pIC50 values for 5-HT1A and α1-adrenergic receptors of 8.9 and 6.6, respectively. WAY-100635 maleate is also a potent dopamine D4 receptor agonist.
    WAY-100635 maleate (Standard)
  • HY-14763R
    Cariprazine (Standard)
    Modulator
    Cariprazine (Standard) is the analytical standard of Cariprazine. This product is intended for research and analytical applications. Cariprazine is a novel antipsychotic agent candidate that exhibits high affinity for the D3 (Ki=0.085 nM) and D2 (Ki=0.49 nM) receptors, and moderate affinity for the 5-HT1A receptor (Ki=2.6 nM).
    Cariprazine (Standard)
  • HY-115192
    ent-Naxagolide hydrochloride
    Agonist
    ent-Naxagolide (ent-MK-458) hydrochloride is a dopamine D2-receptor agonist. ent-Naxagolide hydrochloride can be used in the study of extrapyramidal diseases and Parkinson's syndrome.
    ent-Naxagolide hydrochloride
  • HY-N0300AR
    Tetrahydropalmatine hydrochloride (Standard)
    Inhibitor
    Tetrahydropalmatine (hydrochloride) (Standard) is the analytical standard of Tetrahydropalmatine (hydrochloride). This product is intended for research and analytical applications. Tetrahydropalmatine (DL-Tetrahydropalmatine) hydrochloride possesses analgesic effects. Tetrahydropalmatine hydrochloride acts through inhibition of amygdaloid release of dopamine to inhibit an epileptic attack in rats.
    Tetrahydropalmatine hydrochloride (Standard)
  • HY-B0031S2
    Quetiapine-d8 fumarate
    Antagonist
    Quetiapine-d8 (fumarate) is the deuterium labeled Quetiapine. Quetiapine 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-d<sub>8</sub> fumarate
  • HY-12520AR
    SKF 38393 hydrochloride (Standard)
    Agonist
    SKF 38393 (hydrochloride) (Standard) is the analytical standard of SKF 38393 (hydrochloride). This product is intended for research and analytical applications. SKF 38393 hydrochloride is a selective agonist of the dopamine D1 receptor (D1DR) with an IC50 of 110 nM.
    SKF 38393 hydrochloride (Standard)
  • HY-B1794AR
    Thiethylperazine dimaleate (Standard)
    Antagonist
    Thiethylperazine (dimaleate) (Standard) is the analytical standard of Thiethylperazine (dimaleate). This product is intended for research and analytical applications. Thiethylperazine dimaleate, a phenothiazine derivate, is an orally active and potent dopamine D2-receptor and histamine H1-receptor antagonist. Thiethylperazine dimaleate is also a selective ABCC1activator that reduces amyloid-β (Aβ) load in mice. Thiethylperazine dimaleate has anti-emetic, antipsychotic and antimicrobial effects.
    Thiethylperazine dimaleate (Standard)
  • HY-B1470R
    Azaperone (Standard)
    Antagonist
    Azaperone (R-1929) (Standard) is the analytical standard of Azaperone (HY-B1470). This product is intended for research and analytical applications. Azaperone is an antagonist of dopamine D2 receptor (Dopamine D2 Receptor) and α-adrenergic receptor (AR). Azaperone reduces vasomotor tone, mean arterial pressure, hematocrit, hemoglobin concentration, and etorphine-induced duration; induces transient tachycardia followed by bradycardia, splenic uptake of red blood cells, and sedation; alters animal behaviors; and produces sedation with distinct onset and duration in foals. Azaperone is used for sedation and tranquilization in various animals to reduce stress and aggressive behaviors, and serves as a preanesthetic agent.
    Azaperone (Standard)
  • HY-14330
    ABT-724
    Agonist 98.04%
    ABT-724, a chemical probe, 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-14541S1
    Olanzapine-d4
    Antagonist
    Olanzapine-d4 (LY170053-d4) is deuterium-labeled Olanzapine (HY-14541).
    Olanzapine-d<sub>4</sub>
  • HY-103410R
    Carmoxirole hydrochloride (Standard)
    Agonist
    Carmoxirole (hydrochloride) (Standard) is the analytical standard of Carmoxirole (hydrochloride). This product is intended for research and analytical applications. Carmoxirole hydrochloride (EMD 45609 hydrochloride) is a selective, peripherally acting dopamine D2 receptor agonist and exhibits antihypertensive activities in vivo.
    Carmoxirole hydrochloride (Standard)
  • HY-106973A
    Nolomirole hydrochloride
    Agonist
    Nolomirole (CHF 1035) hydrochloride is an orally active and selective DA2 dopaminergic receptor/α2-adrenoceptor agonist. Nolomirole attenuates the heart failure signs in the Monocrotaline (HY-N0750)-induced congestive heart failure model. Nolomirole increases cardiac output.
    Nolomirole hydrochloride
  • HY-124521
    Quinelorane
    Agonist
    Quinelorane (LY163502 free base) is a dopamine D2 receptor agonist. Quinelorane promotes semen ejaculation but inhibits penile erection in rats. Quinelorane can be used in the study of sexual dysfunction.
    Quinelorane
  • HY-11018B
    Risperidone mesylate
    Antagonist
    Risperidone mesylate(R 64 766 mesylate) is a serotonin 5-HT2 receptor blocker, P-Glycoprotein inhibitor and potent dopamine D2 receptor antagonist, with Kis of 4.8, 5.9 nM for 5-HT2A and dopamine D2 receptor, respectively.
    Risperidone mesylate
  • HY-17355R
    Pramipexole dihydrochloride (Standard)
    Agonist
    Pramipexole (dihydrochloride) (Standard) is the analytical standard of Pramipexole (dihydrochloride). This product is intended for research and analytical applications. 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 dihydrochloride (Standard)
  • HY-101299BR
    Dihydrexidine hydrochloride (Standard)
    Agonist
    Dihydrexidine (hydrochloride) (Standard) is the analytical standard of Dihydrexidine (hydrochloride) (HY-101299B). This product is intended for research and analytical applications. Dihydrexidine hydrochloride (DAR-0100 hydrochloride) is a high potent, selective and full efficacy D1-like dopamine receptor (D1/D5) agonist, with an IC50 of 10 nM for D1 receptor. Dihydrexidine hydrochloride exhibits potent antiparkinsonian activity. Dihydrexidine hydrochloride can stimulate YAP phosphorylation.
    Dihydrexidine hydrochloride (Standard)
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