2. Signaling Pathways
  3. GPCR/G Protein
    Neuronal Signaling
  4. Dopamine Receptor
  5. D4 Receptor Isoform
  6. D4 Receptor Antagonist

D4 Receptor Antagonist

D4 Receptor Antagonists (37):

Cat. No. Product Name Effect Purity
  • HY-103414
    Raclopride
    		Antagonist 99.86%
    Raclopride is a dopamine D2/D3 receptor antagonist with potential antipsychotic effects. Raclopride binds to D2 and D3 receptors with Kis of 1.8 nM and 3.5 nM, respectively.
  • HY-175504
    MLS6357
    		Antagonist
    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.
  • HY-A0077
    Perphenazine
    		Antagonist 99.95%
    Perphenazine is an orally active dopamine receptor and histamine-1 receptor antagonist, with Ki values of 0.56 nM (D2), 0.43 nM (D3), 6 nM (5-HT2A), respectively. Perphenazine also binds to Alpha-1A adrenergic receptor. Perphenazine inhibits cancer cell proliferation, and induces apoptosis. Perphenazine can be used in the research of mental disease, cancer, inflammation.
  • HY-101348
    L-741626
    		Antagonist ≥99.0%
    L-741626 is a selective D2 dopamine receptor antagonist, with the Ki values of 2.4, 100 and 220 nM for human D2, D3 and D4 receptors respectively.
  • HY-13575
    Blonanserin
    		Antagonist 99.62%
    Blonanserin (AD-5423) is a potent and orally active 5-HT2A (Ki=0.812 nM) and dopamine D2 receptor (Ki =0.142 nM) antagonist. Blonanserin is usually acts as an atypical antipsychotic agent and can be used for the research of extrapyramidal symptoms, excessive sedation, or hypotension.
  • HY-14689
    Ecopipam hydrochloride
    		Antagonist 99.46%
    Ecopipam (SCH 39166) hydrochloride is a potent, selective and orally active antagonist of dopamine D1/D5 receptor, with Kis of 1.2 nM and 2.0 nM, respectively. Ecopipam hydrochloride shows more than 40-flod selectivity over D2, D4, 5-HT, and α2a receptor (Ki=0.98, 5.52, 0.08, and 0.73 μM, respectively). Ecopipam hydrochloride can be used for the research of schizophrenia and obesity.
  • HY-14325
    L-745870
    		Antagonist 99.92%
    L-745870 is a potent, selective, brain-penetrant and orally active dopamine D4 receptor antagonist with a Ki of 0.43 nM. L-745870 shows weaker affinity for D2 (Ki of 960 nM) and D3 (Ki of 2300 nM) receptors, and exhibits moderate affinity for 5-HT2 receptors, sigma sites and α-adrenoceptors.
  • HY-10121
    Asenapine
    		Antagonist 99.62%
    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.
  • HY-17410
    Iloperidone
    		Antagonist 99.93%
    Iloperidone (HP 873) is a D2/5-HT2 receptor antagonist. Iloperidone is an atypical antipsychotic for the schizophrenia symptoms.
  • HY-B1371A
    Spiperone hydrochloride
    		Antagonist 99.10%
    Spiperone hydrochloride (Spiroperidol hydrochloride) is a selective dopamine D2 receptor (Ki values of 0.06 nM, 0.6 nM, 0.08 nM, ~350 nM, ~3500 nM for D2, D3, D4, D1 and D5 receptors, respectively) and 5-HT2A/5-HT1A receptor (Kis of 1 nM/49 nM) antagonist. Spiperone hydrochloride is also a selective α1B-adrenoceptor antagonist. Spiperone hydrochloride activates calcium-activated chloride channel (CaCC). Antipsychotic and anti-inflammatory activities.
  • HY-100703
    Pipamperone
    		Antagonist 99.89%
    Pipamperone (Floropipamide) is a butyrophenone derivative and high-affinity antagonist of 5-HT2A receptor (pKi=8.2) and D4 receptor (pKi=8.0). Pipamperone is also a low-affinity antagonist of D2 receptor (pKi=6.7). Pipamperone affects neurotransmitter functions and exerts antipsychotic activity. Pipamperone is used in the research of mental disorders such as autism-related behavioral disorders and Alzheimer's disease.
  • HY-14325B
    L-745870 hydrochloride
    		Antagonist 99.91%
    L-745870 hydrochloride is a potent, selective, brain-penetrant and orally active dopamine D4 receptor antagonist with a Ki of 0.43 nM. L-745870 hydrochloride shows weaker affinity for D2 (Ki of 960 nM) and D3 (Ki of 2300 nM) receptors, and exhibits moderate affinity for 5-HT2 receptors, sigma sites and α-adrenoceptors.
  • HY-14782
    Adoprazine
    		Antagonist 98.60%
    Adoprazine (SLV313) is a full 5-HT1A receptor agonist with a pEC50 of 9 at cloned h5-HT1A receptors. Adoprazine (SLV313) is a full D2 and D3 receptor antagonist with pA2s of 9.3 and 8.9 at hD2 and hD3 receptors, respectively. Adoprazine (SLV313) has the characteristics of atypical antipsychotics.
  • HY-14328
    Sonepiprazole
    		Antagonist 98.43%
    Sonepiprazole (PNU-101387G) is a selective D4 dopamine antagonist with Kis of 3.6, 10.1, 5147, and 7430 nM for rD4-Dopamine, hD4.2-Dopamine, rD2-Dopamine, and Histamine-H1 receptors, respectively.
  • HY-116941
    A-381393
    		Antagonist 99.92%
    A-381393 is a potent, selective, brain penetrate dopamine D4 receptor antagonist, with Kis of 1.5, 1.9 and 1.6 nM for human dopamine D4.4, D4.2, and D4.7 receptor, respectively, >2700-fold selectivity over D1, D2, D3 and D5 dopamine receptors. A-381393 shows moderate affinity for 5-HT2A (Ki, 370 nM).
  • HY-14690
    Ecopipam
    		Antagonist 99.77%
    Ecopipam (SCH 39166) is a potent, selective and orally active antagonist of dopamine D1/D5 receptor, with Kis of 1.2 nM and 2.0 nM, respectively. Ecopipam shows more than 40-flod selectivity over D2, D4, 5-HT, and α2a receptor (Ki=0.98, 5.52, 0.08, and 0.73 μM, respectively). Ecopipam can be used for the research of schizophrenia and obesity.
  • HY-147398
    Dopamine D4 receptor antagonist-1
    		Antagonist 98.59%
    Dopamine D4 receptor antagonist-1 is a selective DRD4 antagonists, with a Ki of 9.0 nM for Hd4.2. Dopamine D4 receptor antagonist-1 can be used in study of schizophrenia.
  • HY-110033
    Ecopipam hydrobromide
    		Antagonist ≥99.0%
    Ecopipam (SCH 39166) hydrobromide is a potent, selective and orally active antagonist of dopamine D1/D5 receptor, with Kis of 1.2 nM and 2.0 nM, respectively. Ecopipam hydrobromide shows more than 40-flod selectivity over D2, D4, 5-HT, and α2a receptor (Ki=0.98, 5.52, 0.08, and 0.73 μM, respectively). Ecopipam hydrobromide can be used for the research of schizophrenia and obesity.
  • 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.
  • 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.