2. Signaling Pathways
  3. GPCR/G Protein
    Neuronal Signaling
  4. mAChR
  5. mAChR Antagonist

mAChR Antagonist

mAChR Isoform Comparison

mAChR Antagonists (295):

Cat. No. Product Name Effect Purity
  • HY-B1205
    Atropine
    		Antagonist 99.85%
    Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia.
  • HY-B1205R
    Atropine (Standard)
    		Antagonist
    Atropine (Standard) is the analytical standard of Atropine. This product is intended for research and analytical applications. Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine inhibits ACh-induced relaxations in human pulmonary veins. Atropine can be used for research of anti-myopia and bradycardia.
  • HY-14541
    Olanzapine
    		Antagonist 99.96%
    Olanzapine (LY170053) is a selective, orally active monoaminergic antagonist with high affinity binding to serotonin H1, 5HT2A/2C, 5HT3, 5HT6 (Ki=7, 4, 11, 57, and 5 nM, respectively), dopamine D1-4 (Ki=11 to 31 nM), muscarinic M1-5 (Ki=1.9-25 nM), and adrenergic α1 receptor (Ki=19 nM). Olanzapine is an atypical antipsychotic.
  • HY-17585
    Mepenzolate bromide
    		Antagonist 99.90%
    Mepenzolate bromide is an orally administered muscarinic receptor antagonist with Kis of 0.68 and 2.6 nM for hM2R and hM3R, respectively. Mepenzolate bromide can be used to suppress the gastrointestinal hypermotility associated with irritable bowel syndrome.Mepenzolate bromide is a GPR109A inhibitor.
  • HY-N2364
    Arecoline
    		Antagonist 99.84%
    Arecoline, a naturally occurring psychoactive alkaloid, is a partial agonist of nicotinic and muscarinic acetylcholine receptor. Arecoline exhibits stimulation, alertness, anxiolysis and anti-parasitic effects. Arecoline also can induce oxidative stress.
  • HY-A0012
    Darifenacin hydrobromide
    		Antagonist 99.97%
    Darifenacin (UK-88525) hydrobromide is a selective and orally active M3 muscarinic receptor (M3R) antagonist with a pKi of 8.9. Darifenacin hydrobromide binds >20-fold more specifically to M3R than to other muscarinic receptors. Darifenacin hydrobromide can be used in the study of urinary incontinence and other symptoms of overactive bladder. Darifenacin hydrobromide inhibits tumor growth in colorectal cancer cells and has anti-tumor effects.
  • HY-B1205A
    Atropine sulfate
    		Antagonist 99.63%
    Atropine (Tropine tropate) sulfate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate can be used for research of anti-myopia and bradycardia.
  • HY-B1188
    Propantheline bromide
    		Antagonist
    Propantheline bromide is an orally active mAChR antagonist. Propantheline bromide can be used in the research of smooth muscle dysfunction, excessive sweating, cramps or spasms of the stomach, intestines or bladder, and involuntary urination.
  • HY-B0527A
    Amitriptyline hydrochloride
    		Antagonist 99.94%
    Amitriptyline hydrochloride is an orally active tricyclic antidepressant (TCA). Amitriptyline hydrochloride mainly exerts its antidepressant effect by blocking SERT (Ki = 3.45 nM) and NET (Ki = 13.3 nM), thereby increasing the concentrations of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the synaptic cleft. Amitriptyline hydrochloride is also an agonist at α2A and TrkA/TrkB receptors, thereby exerting analgesic and neurotrophic activities (inhibiting cell apoptosis). Amitriptyline hydrochloride can reduce inflammation, angiogenesis and fibrosis. Amitriptyline hydrochloride binds to DAT (with Ki = 2.58 μM). Amitriptyline hydrochloride has high affinity for a series of receptors and can antagonize muscarinic cholinergic receptors (M1/M2/M3/M4/M5 receptors) (Ki = 11-24 nM), H1 receptors (Ki = 0.5-1.1 nM), adrenergic α1 receptors (Ki = 4.4 nM), etc., resulting in a series of side effects. Amitriptyline hydrochloride can block sodium channels and hERG potassium channel (IC50 = 4.78 μM) and it has cardiotoxicity.
  • HY-B0527
    Amitriptyline
    		Antagonist 99.94%
    Amitriptyline is an orally active tricyclic antidepressant (TCA). Amitriptyline mainly exerts its antidepressant effect by blocking SERT (Ki = 3.45 nM) and NET (Ki = 13.3 nM), thereby increasing the concentrations of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the synaptic cleft. Amitriptyline is also an agonist at α2A and TrkA/TrkB receptors, thereby exerting analgesic and neurotrophic activities (inhibiting cell apoptosis). Amitriptyline can reduce inflammation, angiogenesis and fibrosis. Amitriptyline binds to DAT (with Ki = 2.58 μM). Amitriptyline has high affinity for a series of receptors and can antagonize muscarinic cholinergic receptors (M1/M2/M3/M4/M5 receptors) (Ki = 11-24 nM), H1 receptors (Ki = 0.5-1.1 nM), adrenergic α1 receptors (Ki = 4.4 nM), etc., resulting in a series of side effects. Amitriptyline can block sodium channels and hERG potassium channel (IC50 = 4.78 μM) and it has cardiotoxicity.
  • HY-17360
    Tiotropium Bromide
    		Antagonist 99.91%
    Tiotropium Bromide (BA679 BR) is a muscarinic acetylcholine receptor (mAChR) antagonist that blocks the binding of the acetylcholine ligand and subsequent opening of the ligand-gated ion channel.
  • HY-107647
    (S)-(+)-Dimethindene maleate
    		Antagonist 99.80%
    (S)-(+)-Dimethindene maleate, an enantiomer, is a potent M2-selective muscarinic receptor antagonist (pA2 = 7.86/7.74; pKi = 7.78). (S)-(+)-Dimethindene maleate shows lower affinities for the muscarinic M1 (pA2 = 6.83/6.36; pKi = 7.08), the M3 (pA2 = 6.92/6.96; pKi = 6.70) and the M4 receptors (pKi = 7.00), respectively. (S)-(+)-Dimethindene maleate also is a histamine H1 receptor antagonist (pA2 = 7.48).
  • HY-17465
    Glycopyrrolate
    		Antagonist 99.93%
    Glycopyrrolate (Glycopyrronium bromide), a quaternary ammonium derivative, is a muscarinic receptor antagonist. Glycopyrrolate has bronchoprotective effect and produces a beneficial effect on blood pressure. Glycopyrrolate can be used for the research of bronchial diseases.
  • HY-A0033
    Darifenacin
    		Antagonist 99.81%
    Darifenacin (UK-88525) is a selective and orally active M3 muscarinic receptor (M3R) antagonist with a pKi of 8.9. Darifenacin binds >20-fold more specifically to M3R than to other muscarinic receptors. Darifenacin can be used in the study of urinary incontinence and other symptoms of overactive bladder. Darifenacin inhibits tumor growth in colorectal cancer cells and has anti-tumor effects.
  • HY-100958
    4-DAMP
    		Antagonist 99.96%
    4-DAMP (4-DAMP methiodide) is a potent and selective antagonist of M3 receptors and also has a high affinity for the closely-related M5 receptors. 4-DAMP combined with 5-Fluorouracil (5-Fu) (HY-90006) could significantly reduce the cell viability and enhance apoptosis in MKN45 and BGC823 gastric cancer cells. 4-DAMP inhibits lipopolysaccharide (LPS)- and tobacco-induced pulmonary inflammation and reduces mucin 5AC (MUC5AC), oligomeric mucus/gel-forming secretion.
  • HY-B0781
    Promethazine hydrochloride
    		Antagonist 99.85%
    Promethazine hydrochloride is an orally active phenothiazine derivative with antihistaminic (H1), sedative, antiemetic, anticholinergic, and antimotion sickness properties. Promethazine hydrochloride is a potent H1 receptor antagonist and a mAChR antagonist. It also has a certain affinity for 5-HT2A and 5-HT2C receptors.
  • HY-W010892
    Scopolamine hydrobromide trihydrate
    		Antagonist 99.89%
    Scopolamine (Hyoscine) hydrobromide trihydrate is a high-affinity muscarinic antagonist that can cross the blood-brain barrier. Scopolamine hydrobromide trihydrate competitively antagonizes 5-HT3 receptors with an IC50 of 2.09 μM. Scopolamine hydrobromide trihydrate can induce cognitive and memory deficits in animals. Scopolamine hydrobromide trihydrate can be used in the research of preventing postoperative nausea and vomiting, motion sickness, nervous system diseases, etc.
  • HY-B0394
    Atropine sulfate monohydrate
    		Antagonist 99.87%
    Atropine (Tropine tropate) sulfate monohydrate is a competitive muscarinic acetylcholine receptor (mAChR) antagonist with IC50 values of 0.39 and 0.71 nM for Human mAChR M4 and Chicken mAChR M4, respectively. Atropine sulfate monohydrate inhibits ACh-induced relaxations in human pulmonary veins. Atropine sulfate monohydrate can be used for research of anti-myopia and bradycardia.
  • HY-A0030
    Fesoterodine fumarate
    		Antagonist 99.52%
    Fesoterodine Fumarate is an orally active, nonsubtype selective, competitive muscarinic receptor (mAChR) antagonist with pKi values of 8.0, 7.7, 7.4, 7.3, 7.5 for M1, M2, M3, M4, M5 receptors, respectively. Fesoterodine Fumarate is used for the overactive bladder (OAB).
  • HY-107922
    Ethopropazine hydrochloride
    		Antagonist 99.66%
    Ethopropazine (Isothazine) hydrochloride is a potent and selective BChE inhibitor, a poor AChE inhibitor and a non-selective mAChR and NMDA antagonist. Ethopropazine hydrochloride has anticholinergic, antihistamine, antiadrenergic actions and properties. Ethopropazine hydrochloride alleviates thermal hyperalgesia in a dose dependent manner. Ethopropazine hydrochloride can be used for the research of Parkinson’s disease.