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-12705AR
    Bromocriptine mesylate (Standard)
    		Agonist
    Bromocriptine (mesylate) (Standard) is the analytical standard of Bromocriptine (mesylate). This product is intended for research and analytical applications. Bromocriptine mesylate is a potent dopamine D2/D3 receptor agonist, which binds D2 dopamine receptor with pKi of 8.05±0.2.
    Bromocriptine mesylate (Standard)
  • HY-A0125
    Alizapride
    		Antagonist
    Alizapride is a potent antiemetic, acting as a dopamine receptor antagonist. Alizapride also used in human digestive disorders.
    Alizapride
  • HY-145454
    (R)-Preclamol
    		99.56%
    (R)-Preclamol is a dopamine (DA) agonist with autoreceptor as well as postsynaptic receptor stimulatory properties. (R)-Preclamol inhibits the locomotor activity of mice and rats in low doses.
    (R)-Preclamol
  • HY-125043
    SKF-75670 hydrobromide
    		Agonist 99.83%
    SKF-75670 hydrochloride is a Dopamine D1 receptor partial agonist. SKF-75670 hydrochloride is also a Cocaine antagonist.
    SKF-75670 hydrobromide
  • HY-N0927
    (-)-Isocorypalmine
    		99.67%
    (-)-Isocorypalmine (Tetrahydrocolumbamine; (S)-Tetrahydrocolumbamine) is a dopamine receptor ligand and modulator capable of crossing the blood-brain barrier. (-)-Isocorypalmine exhibits receptor selectivity, acting as a partial agonist of dopamine D1 and D5 receptors (coupled via Gs proteins), as well as an antagonist of D2, D3 and D4 receptors (by blocking Gi protein-mediated signaling). (-)-Isocorypalmine shows no significant binding to various non-dopamine receptors, ion channels and transporters. (-)-Isocorypalmine is metabolically stable in vivo, effectively inhibits spontaneous and cocaine-induced hyperlocomotion, sensitization and conditioned place preference in mice, and does not induce addictive place preference when administered alone. (-)-Isocorypalmine can be used in addiction research.
    (-)-Isocorypalmine
  • 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-B0457S
    Clomipramine-d3 hydrochloride
    		Inhibitor 99.98%
    Clomipramine-d3 (hydrochloride) is a deuterium labeled Clomipramine hydrochloride. Clomipramine hydrochloride is a serotonin transporter (SERT), norepinephrine transporter (NET) dopamine transporter (DAT) blocker with Ki of 0.14, 54 and 3 nM, respectively.
    Clomipramine-d<sub>3</sub> hydrochloride
  • 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-105856
    Thozalinone
    		99.93%
    Thozalinone is an orally active antidepressant agent. Thozalinone induces the release of Norepinephrine (HY-13715) and dopamine.
    Thozalinone
  • 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
  • HY-133152
    Brexpiprazole S-oxide
    		Agonist
    Brexpiprazole S-oxide (DM-3411) is a main metabolite of Brexpiprazole and is metabolized by cytochrome P450 3A4 (CYP3A4). Brexpiprazole is an atypical antipsychotic agent and a partial agonist of human 5-HT1A and dopamine receptor with Kis of 0.12 nM and 0.3 nM, respectively. Brexpiprazole is also a 5-HT2A receptor antagonist with a Ki of 0.47 nM.
    Brexpiprazole S-oxide
  • HY-131255
    Ziprasidone amino acid
    		Antagonist 99.46%
    Ziprasidone amino acid (Ziprasidone Impurity C) is an impurity of Ziprasidone. Ziprasidone is a combined 5-HT (serotonin) and dopamine receptor antagonist. Ziprasidone exhibits potent effects of antipsychotic activity .
    Ziprasidone amino acid
  • HY-141495
    (Rac)-Razpipadon
    		Agonist
    PW0464, a nanomolar potent complete G protein biased ligand, is a noncatechol D1R agonist, with an EC50 of 5.8 nM (Gs-cAMP).
    (Rac)-Razpipadon
  • HY-10847A
    SB-277011 dihydrochloride
    		Antagonist
    SB-277011 dihydrochloride (SB-277011A dihydrochloride) is a potent, selective, orally bioavailable and brain penetrate dopamine D3 receptor antagonist, with pKis of 8.0, 6.0, <5.2 and 5.9 for D3, D2, 5-HT1B, and 5-HT1D receptors, respectively.
    SB-277011 dihydrochloride
  • HY-100929
    GBR-12879 dihydrochloride
    GBR-12879 dihydrochloride is a potent inhibitor of dopamine uptake.
    GBR-12879 dihydrochloride
  • HY-15238A
    ST-836 hydrochloride
    		Agonist
    ST-836 hydrochloride (compound 34) is a potent dopamine receptor ligand with Ki values of 4.5 nM, 132 nM for D3 and D2, respectively. ST-836 hydrochloride has the potential for Parkinson’s disease.
    ST-836 hydrochloride
  • HY-11018A
    Risperidone hydrochloride
    		Antagonist
    Risperidone hydrochloride (R 64 766 hydrochloride) 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 hydrochloride
  • HY-17390AR
    Loxapine succinate (Standard)
    		Inhibitor
    Loxapine (succinate) (Standard) is the analytical standard of Loxapine (succinate). This product is intended for research and analytical applications. Loxapine succinate is an orally active dopamine inhibitor, 5-HT receptor antagonist and also a dibenzoxazepine anti-psychotic agent. Loxapine can also suppresses bacterial efflux pump activity and inhibit intracellular multiple-antibiotic-resistant Salmonella enterica serovar Typhimurium in macrophages.
    Loxapine succinate (Standard)
  • HY-15394
    (Rac)-Rotigotine hydrochloride
    		Agonist 98.11%
    (Rac)-Rotigotine hydrochloride is a racemate of Rotigotine. Rotigotine is a full agonist of dopamine receptor, a partial agonist of the 5-HT1A receptor, and an antagonist of the α2B-adrenergic receptor, with Kis of 0.71 nM, 4-15 nM, and 83 nM for the dopamine D3 receptor and D2, D5, D4 receptors, and dopamine D1 receptor.
    (Rac)-Rotigotine hydrochloride
Cat. No. Product Name / Synonyms Application Reactivity
Dopamine Receptor Isoform Comparison

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