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-175504
    MLS6357
    		Antagonist 99.57%
    MLS6357 is a D3 dopamine receptor (D3R)-selective positive allosteric modulator (PAM)-antagonist. MLS6357 exhibits antagonist activity in the D3R-mediated and the BRET-based β-arrestin recruitment assay with IC50s of 13 and 14 μM, and no activity for other DAR subtypes (D1R/D2R/D4R/D5R) (IC50 > 100 μM). MLS6357 is also an antagonist in the D3R-mediated Go-BRET assay with an IC50 of 17 μM. MLS6357 can be used for the study of neuropsychiatric disorders, including substance use disorder.
    MLS6357
  • HY-B0407AR
    Chlorpromazine hydrochloride (Standard)
    		Antagonist
    Chlorpromazine (hydrochloride) (Standard) is the analytical standard of Chlorpromazine (hydrochloride). This product is intended for research and analytical applications. Chlorpromazine hydrochloride is an orally active, blood-brain barrier-transparent antipsychotic agent that effectively antagonises D2 dopamine receptors and 5-HT2A, which is widely used in schizophrenia and other psychiatric disorders. Chlorpromazine hydrochloride exerts anti-cancer activity through a variety of pathways, including anti-proliferation, induction of autophagy and cycle arrest (G2-M phase), inhibition of cytochrome c oxidase (CcO), inhibition of tumour growth and metastasis, and inhibition of tumour immune escape. Chlorpromazine hydrochloride also blocks hNav1.7 channels (IC50=25.9 μM; concentration-dependent) and HERG potassium channels (IC50=21.6 μM), which has potential for analgesic and cardiac arrhythmic studies. Chlorpromazine hydrochloride also can inhibit clathrin-mediated endocytosis.
    Chlorpromazine hydrochloride (Standard)
  • HY-14327
    FAUC 213
    		Antagonist 99.86%
    FAUC 213 is an orally active and highly selective dopamine D4 receptor complete antagonist with a Ki of 2.2 nM for hD4.4. FAUC 213 has less activity on D2 and D3 receptors (Kis of 3.4 μM, 5.3 μM for hD2, hD3, respectively). FAUC 213 can cross the blood-brain barrier (BBB). FAUC 213 exhibits atypical antipsychotic characteristic.
    FAUC 213
  • HY-12987S
    Pimozide-d4
    		Antagonist 99.2%
    Pimozide-d4 is a 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>4</sub>
  • HY-171328
    RG-15
    		Antagonist
    RG-15 is the orally active antagonist for dopamine receptor that exhibits goof affinity to human D2 receptor and human D3 receptor with pKi of 8.23 and 10.49. RG-15 inhibits dopamine-stimulated [35S]GTPγS binding with IC50 of 21.2 nM (rat striatal membranes), 36.7 nM (mouse A9 cells expressing human D2L receptors) and 7.2 nM (CHO cells expressing human D3 receptors). RG-15 increases the turnover and biosynthesis of dopamine in mouse striatum and olfactory bulb, exhibiting antipsychotic activity.
    RG-15
  • HY-110010
    Nafadotride
    		Antagonist 99.78%
    Nafadotride is a dopamine D3 receptor antagonist. Nafadotrode regulates dopamine signaling primarily by antagonizing dopamine D3 receptors. The dopamine D3 receptor plays an important role in regulating emotion, motivation, reward, and certain motor functions. By blocking these receptors, Nafadotrode may affect neurotransmission processes associated with these functions. Nafadotrode can be used to explore the role of dopamine D3 receptors in various behavioral and neuropsychiatric disorders.
    Nafadotride
  • HY-110024
    S-14506 hydrochloride
    		Antagonist 98.64%
    S-14506 hydrochloride is a potent 5-HT1A agonist, as well as 5-HT2A/2C antagonist. S-14506 hydrochloride displays dopamine antagonist properties by blocking dopamine D2 receptors. S-14506 hydrochloride inhibits the in vivo binding of [3H]raclopride in striatum and olfactory bulbs. S-14506 hydrochloride has the potential for the research of anxiolytic agent.
    S-14506 hydrochloride
  • HY-103405
    NGD94-1
    		Antagonist 99.73%
    NGD94-1 is a potent and selective dopamine D4 receptor antagonist. NGD94-1 shows high affinity for the cloned human D4.2 receptor (Ki = 3.6 nM). NGD94-1 modulates the cognitive functions of the frontostriatal system and regulates dopaminergic transmission in Phencyclidine (PCP)-induced monkeys. NGD94-1 can be used for neurological disease research[1][2].
    NGD94-1
  • HY-U00051
    Propiomazine
    		Antagonist 98.91%
    Propiomazine is an orally active antihistamine agent. Propiomazine is a potent prolactin (PRL) release stimulant, whose effect depends on the antagonism of the dopaminergic system and can inhibit the secretion of luteinizing hormone (LH). Propiomazine is mainly used for anesthesia assistance, mental disorders and anxiety-induced sedation, and can also be used in research related to insomnia.
    Propiomazine
  • HY-12701A
    U-99194 maleate
    		Antagonist 99.23%
    U-99194 (PNU-99194) maleate is a selective, potent dopamine D3 receptor antagonist (Ki =160 nM). U-99194 maleate inhibits the activation of D3 receptor mediated by endogenously released dopamine or exogenous D3 agonists. U-99194 maleate abrogates the IPSC-suppressive effect of the D3 agonist PD 128907 in rat hippocampal slices. U-99194 maleate significantly suppresses Nicotine (HY-127019)-induced tremor in mice. U-99194 maleate can be used for the study of dopamine D3 receptor-mediated motor disorders, particularly kinetic tremors.
    U-99194 maleate
  • HY-B2089
    Cinitapride
    		Antagonist 98.24%
    Cinitapride is a nonselective 5-HT1 and 5-HT4 receptors agonist and a 5-HT2 and D2 antagonist. Cinitapride can be used in functional dyspepsia (FD) and gastroesophageal reflux disease (GERD) research.
    Cinitapride
  • HY-103104
    Fananserin
    		Antagonist 99.97%
    Fananserin (RP 62203) is an orally bioavailable, potent and selective 5-hydroxytryptamine2 (5-HT2) receptor antagonist, with a Ki of 0.37 nM for the rat 5-HT2A receptor. Fananserin also is a selective dopamine D4 receptor antagonist, with a Ki of 2.93 nM for the human dopamine D4 receptor.
    Fananserin
  • HY-111480
    Propionylpromazine
    		Antagonist 99.09%
    Propionylpromazine is a dopamine receptor DRD2 antagonist. Propionylpromazine also is an effective tranquillizer. Propionylpromazine can be used in veterinary studies.
    Propionylpromazine
  • HY-10861
    D3/5-HT receptor modulator-1
    		Antagonist 99.75%
    D3/5-HT receptor modulator-1 (compound 5i) is a selective dopamine D3 receptor and 5-HT2A receptor antagonist and a partial 5-HT1A receptor agonist. D3/5-HT receptor modulator-1 shows Ki values of 4.5 nM, 11.9 nM, and 15.3 nM for dopamine D3, 5-HT2A, and 5-HT2A receptors. D3/5-HT receptor modulator-1 has a low affinity for dopamine D2 receptors, 5-HT2C receptors, and hERG channels. D3/5-HT receptor modulator-1 has an atypical antipsychotic profile.
    D3/5-HT receptor modulator-1
  • HY-101797
    Veralipride
    		Antagonist 99.57%
    Veralipride is a D2 receptor antagonist. It is an alternative antidopaminergic treatment for menopausal symptoms.
    Veralipride
  • HY-A0125
    Alizapride
    		Antagonist
    Alizapride is a potent antiemetic, acting as a dopamine receptor antagonist. Alizapride also used in human digestive disorders.
    Alizapride
  • HY-106584
    Mosapramine
    		Antagonist 98.58%
    Mosapramine (Clospipramine) is an orally active antipsychotic agent and one of the metabolites of Clocapramine (HY-B2073) after oral absorption. Mosapramine exerts its effects by specifically binding to striatal dopamine D2 receptors and frontal lobe 5-HT2 receptors, with a D2/5-HT2 receptor occupancy ratio of 7.4. Mosapramine induces typical neuropharmacological responses in rat brain regions, including extrapyramidal symptoms, hyperprolactinemia, increased salivation, constipation, and upregulated Fos protein expression. Mosapramine also features a reduced incidence of weight loss. Mosapramine is applicable to research related to schizophrenia.
    Mosapramine
  • HY-100971
    Spiramide
    		Antagonist 99.23%
    Spiramide (AMI-193) is a potent and selective antagonist of 5-HT2 and dopamine D2 receptor, with Kis of 2 nM and 3 nM, respectively. Spiramide has >2000-fold selectivity for 5-HT2 versus 5-HT1C (Ki=4300 nM) receptors. Spiramide exhibits antipsychotic activity.
    Spiramide
  • HY-119980S
    Fluphenazine-d8
    		Antagonist 99.12%
    Fluphenazine-d8 is the deuterium labeled Fluphenazine. Fluphenazine is a potent, orally active phenothiazine-based dopamine receptor antagonist. Fluphenazine blocks neuronal voltage-gated sodium channels. Fluphenazine acts primarily through antagonism of postsynaptic dopamine-2 receptors in mesolimbic, nigrostriatal, and tuberoinfundibular neural pathways. Fluphenazine can antagonize Methylphenidate-induced stereotyped gnawing and inhibit climbing behaviour in mice. Fluphenazine can be used for researching psychosis and painful peripheral neuropathy associated with diabetes and has potential to inhibit SARS-CoV-2.
    Fluphenazine-d<sub>8</sub>
  • HY-15856
    cis-(Z)-Flupentixol dihydrochloride
    		Antagonist
    cis-(Z)-Flupentixol dihydrochloride is a potent and selective DA D1/D2 receptor antagonist, with Ki values of 0.38 nM and 7 nM for D2 receptor and 5-HT2A, respectively.
    cis-(Z)-Flupentixol dihydrochloride
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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