1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Adrenergic Receptor
  4. α adrenergic receptor Isoform
  5. α adrenergic receptor Antagonist

α adrenergic receptor Antagonist

α adrenergic receptor Antagonists (52):

Cat. No. Product Name Effect Purity
  • HY-162677
    MT-1207 is an orally active and selective adrenergic α1 and 5-HT2A receptor antagonist. MT-1207 shows IC50<0.1 nM, 0.15 nM, 1.40 nM and 0.27 nM for α1A, α1B, α1D and 5-HT2A, respectively. MT-1207 achieves an effective blood pressure (BP) reduction in the 2K2C rat model without damaging renal function. MT-1207 is a potent multitarget inhibitor with the potential for vasodilatation research.
  • HY-101338
    RS-79948-197 is a non-imidazoline α2-adrenoceptor antagonist. RS-79948-197 shows Kd values of 0.42 nM, 0.18 nM, 0.19 nM, 0.60 nM, 0.46 nM, and 0.77 nM for rat α2A, rat α2B, rat α2C, human α2A, human α2B, and human α2C, respectively.
  • HY-B0193A
    Prazosin hydrochloride
    Antagonist 99.86%
    Prazosin hydrochloride is a well-tolerated, CNS-active α1-adrenergic receptor antagonist for the research of high blood pressure and alcohol use disorders. Prazosin hydrochloride potently inhibits Norepinephrine (NE)-stimulated 45Ca efflux with an IC50 of 0.15 nM.Prazosin hydrochloride inhibits organic cation transporters OCT-1 and OCT-3 with IC50s of 1.8, and 13 μM, respectively.
  • HY-121383
    Antagonist 99.88%
    Labetalol (AH5158) is an orally active selective α1- and non-selective β-adrenergic receptors competitive antagonist. Labetalol, an anti-hypertensive agent, can be used for the research of cardiovascular disease, such as hypertension in pregnancy.
  • HY-B0362A
    Phentolamine mesylate
    Antagonist 99.87%
    Phentolamine mesylate (Phentolamine methanesulfonate) is a reversible, non-selective, and orally active blocker of α1 and α2 adrenergic receptor that expands blood vessels to reduce peripheral vascular resistance. Phentolamine mesylate can be used for the research of pheochromocytoma-related hypertension, heart failure and erectile dysfunction.
  • HY-B0661
    Antagonist 99.77%
    Tamsulosin ((R)-(-)-YM12617 free base) is an inhibitor of α1-adrenergic receptor. Tamsulosin is used for the research of prostatic hyperplasia. Tamsulosin attenuates abdominal aortic aneurysm growth in animal models.
  • HY-B0352
    Antagonist 99.94%
    Mirtazapine (Org3770) is a potent and orally active noradrenergic and specific serotonergic antidepressant (NaSSA) agent. Mirtazapine is also a 5-HT2, 5-HT3, histamine H1 receptor and α2-adrenoceptor antagonist with pKi values of 8.05, 8.1, 9.3 and 6.95, respectively.
  • HY-B0098A
    Doxazosin mesylate
    Antagonist 98.34%
    Doxazosin mesylate (UK 33274) is a quinazoline-derivative that selectively antagonizes postsynaptic α1-adrenergic receptors.
  • HY-A0019
    Antagonist 99.69%
    Paliperidone (9-Hydroxyrisperidone), the major active metabolite of Risperidone, is a dopamine D2 antagonist and 5-HT2A antagonist. Paliperidone is also active as an antagonist at α1 and α2 adrenergic receptors and H1-histaminergic receptors. Paliperidone, a antipsychotic agent, shows efficacy against schizophrenia.
  • HY-B1396
    Nefazodone hydrochloride
    Antagonist 99.87%
    Nefazodone hydrochloride (BMY-13754) is a potent and selective 5HT2A (Ki=5.8 nM) antagonist with moderate inhibition of 5-HT and noradrenaline uptake (IC50 of 290 and 300 nM, respectively). Nefazodone hydrochloride is a phenylpiperazine antidepressant with less alpha-adrenergic blocking activity.
  • HY-12380
    Atipamezole hydrochloride
    Antagonist 99.97%
    Atipamezole (MPV-1248) hydrochloride is a potent α2-adrenoceptor antagonist with a Ki of 1.6 nM.
  • HY-B0391
    Antagonist 98.47%
    Naftopidil (KT-611) is is a selective alpha1-adrenoceptor antagonist, with Kis of 3.7 nM, 20 nM and 1.2 nM for the cloned human α1a-, α1b- and α1d-adrenoceptor subtypes, respectively. Naftopidil has antiproliferative effects. Naftopidil can be used for the research of prostate hyperplasia.
  • HY-14561A
    Idazoxan hydrochloride
    Antagonist 99.32%
    Idazoxan hydrochloride (RX 781094 hydrochloride) is an α2-adrenoceptor antagonist and is also a imidazoline receptors (IRs) antagonist competitively antagonized the centrally induced hypotensive effect of imidazoline-like agents (IMs). Idazoxan hydrochloride also improves motor symptoms in Parkinson’s disease, L-DOPA-induced dyskinesias, and experimental Parkinsonism.
  • HY-103213
    JP1302 dihydrochloride
    Antagonist 99.62%
    JP1302 dihydrochloride is a potent, selective, high affinity antagonist of the α2C-adrenoceptor, with a Kb of 16 nM and a Ki of 28 nM for the human α2C-receptor. JP1302 dihydrochloride shows antidepressant and antipsychotic-like effects. JP1302 dihydrochloride can be used for neuropsychiatric disorders and renal dysfunction research.
  • HY-12717
    Antagonist 99.94%
    Phentolamine is a potent, selective and orally active α1 adrenergic and α2 adrenergic receptor antagonist. Phentolamine can be used for the research of erectile dysfunction.
  • HY-13575
    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-19057A
    Vatinoxan hydrochloride
    Antagonist 99.89%
    Vatinoxan hydrochloride (MK-467 hydrochloride;L-659066 hydrochloride) is a peripheral α2 adrenergic receptor antagonist.
  • HY-121186
    Bevantolol hydrochloride
    Antagonist 98.98%
    Bevantolol hydrochloride is a selective β1 and α1-adrenergic receptor antagonist with pKi values of 7.83, 6.9 in rat cerebral cortex, respectively. Bevantolol hydrochloride is a potent Ca2+ antagonist.
  • HY-A0142A
    Dapiprazole hydrochloride
    Antagonist 99.87%
    Dapiprazole hydrochloride is a potent, selective and orally active alpha-1 adrenoceptor antagonist. Dapiprazole hydrochloride suppresses the opioid withdrawal symptoms. Dapiprazole hydrochloride is also used as eye drops for reversing mydriasis.