1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. mAChR


mAChRs (muscarinic acetylcholine receptors) are acetylcholine receptors that form G protein-receptor complexes in the cell membranes of certainneurons and other cells. They play several roles, including acting as the main end-receptor stimulated by acetylcholine released from postganglionic fibersin the parasympathetic nervous system. mAChRs are named as such because they are more sensitive to muscarine than to nicotine. Their counterparts are nicotinic acetylcholine receptors (nAChRs), receptor ion channels that are also important in the autonomic nervous system. Many drugs and other substances (for example pilocarpineand scopolamine) manipulate these two distinct receptors by acting as selective agonists or antagonists. Acetylcholine (ACh) is a neurotransmitter found extensively in the brain and the autonomic ganglia.

mAChR Related Products (176):

Cat. No. Product Name Effect Purity
  • HY-42110
    Agonist 99.79%
    Deschloroclozapine, a metabolite of Clozapine, is a highly potent muscarinic DREADDs agonist. Deschloroclozapine binds to DREADD receptor subtypes hM3Dq and hM4Di with Ki of 6.3 and 4.2 nM, respectively. [11C]-Deschloroclozapine is developed as a promising PET tracer for DREADD imaging.
  • HY-B0726
    Pilocarpine Hydrochloride
    Agonist ≥98.0%
    Pilocarpine Hydrochloride is a potent M3-type muscarinic acetylcholine receptor (M3 muscarinic receptor) agonist.
  • HY-B1205
    Antagonist ≥98.0%
    Atropine (Tropine tropate) is a competitive muscarinic acetylcholine receptor (mAChR) antagonist, with anti-myopia effect. Atropine blocks the inhibitory effect of ACh on heart rate and contractility, potentially also leading to tachyarrhythmias.
  • HY-B0527A
    Amitriptyline hydrochloride
    Inhibitor 99.56%
    Amitriptyline hydrochloride is an inhibitor of serotonin reuptake transporter (SERT) and noradrenaline reuptake transporter (NET), with Kis of 3.45 nM and 13.3 nM for human SERT and NET, respectively. Amitriptyline hydrochloride also weakly binds to dopamine reuptake transporter (DAT) with a Ki of 2.58 μM. Amitriptyline hydrochloride also inhibits adrenergic, muscarinic, histamine and 5-HT receptors. Amitriptyline hydrochloride is a TrkA and TrkB receptors agonist with potent neurotrophic activity. Amitriptyline hydrochloride has antidepressant activity.
  • HY-B1188
    Propantheline bromide
    Propantheline bromide is an antimuscarinic agent, used for the treatment of hyperhidrosis, cramps or spasms of the stomach, intestines or bladder, and enuresis.
  • HY-120023
    Agonist 99.42%
    VU0453595 is a highly selective, systemically active M1 positive allosteric modulator (PAM, EC50=2140 nM) for the research of schizophrenia.
  • HY-109013
    Sofpironium bromide
    Inhibitor 98.18%
    Sofpironium bromide (BBI 4000) is an anticholinergic agent used in the study of primary axillary hyperhidrosis (PAH). Sofpironium bromide reduces sweating by inhibiting M3 muscarinic receptors in eccrine glands at the application site. Sofpironium bromide also has a high afnity for the M1, M2, M4 and M5 subtypes.
  • HY-N0584
    Anisodamine (6-Hydroxyhyoscyamine), a belladonna alkaloid, is a non-subtype-selective muscarinic, and also a nicotinic cholinoceptor antagonist. Anisodamine employs in traditional Chinese medicine for many ailments, mainly to improve the microcirculation in states of shock, and also in organophosphate poisoning.
  • HY-A0083
    Methacholine chloride
    Agonist ≥98.0%
    Methacholine (Acetyl-β-methylcholine) chloride acts a muscarinic M3 receptor agonist in the parasympathetic nervous system. Methacholine chloride acts directly on acetylcholine receptors on smooth muscle causing contraction and airway narrowing. Methacholine challenges are widely used to measure airway hyperresponsiveness (AHR) as a diagnostic aid in the assessment of individuals with asthma-like symptoms and normal resting expiratory flow rates.
  • HY-B0499A
    Otilonium bromide
    Inhibitor 99.48%
    Octylonium bromide (SP63) is an antimuscarinic used as a spasmolytic agent.
  • HY-N0214
    Antagonist 99.51%
    Peimisine (Ebeiensine) non-competitively antagonizes tracheal smooth muscle muscarinic M receptor and inhibits smooth muscle contraction caused by Ach. Peimisine excits β-receptor, restrains the release of internal calcium, and promotes to releaseing NO in order to relax tracheal smooth muscle and relieve asthma.
  • HY-A0012
    Darifenacin hydrobromide
    Antagonist 98.28%
    Darifenacin hydrobromide (UK-88525 hydrobromide) is a selective M3 muscarinic receptor antagonist with pKi of 8.9.
  • HY-13410
    Xanomeline oxalate
    Agonist ≥98.0%
    Xanomeline oxalate (LY246708 oxalate) is a potent and selective muscarinic receptor agonist (SMRA) and stimulates phosphoinositide hydrolysis in vivo. Xanomeline oxalate can be used for the research of Alzheimer’s disease.
  • HY-A0016
    Inhibitor 99.81%
    Dronedarone (SR 33589), a derivative of amiodarone (HY-14187), is a class III antiarrhythmic agent for the study of atrial fibrillation (AF) and atrial flutter. Dronedarone is a potent blocker of multiple ion currents, including potassium current, sodium current, and L-type calcium current, and exhibits antiadrenergic effects by noncompetitive binding to β-adrenergic receptors. Dronedarone is a substrate for and a moderate inhibitor of CYP3A4.
  • HY-17360
    Tiotropium Bromide
    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-B0406A
    Bethanechol chloride
    Bethanechol chloride (Carbamyl-β-methylcholine chloride), a parasympathomimetic agent, is a mAChR agonist that exerts its effects via directly stimulating the mAChR (M1, M2, M3, M4, and M5) of the parasympathetic nervous system.
  • HY-100234
    DREADD agonist 21
    Agonist 98.94%
    DREADD agonist 21 is a potent human muscarinic acetylcholine M3 receptors (hM3Dq) agonist (EC50=1.7 nM).
  • HY-112209
    Agonist ≥98.0%
    VU0467154 is a positive allosteric modulator of the M4 muscarinic acetylcholine receptor (mAChR), potentiating the response to ACh with pEC50s of 7.75, 6.2 and 6 for rat, human and cynomolgus monkey M4 receptor, respectively.
  • HY-B0394
    Atropine sulfate monohydrate
    Antagonist ≥98.0%
    Atropine (Tropine tropate) sulfate monohydrate is a broad-spectrum and competitive muscarinic acetylcholine receptor (mAChR) antagonist with anti-myopia effect.
  • HY-B1205A
    Atropine sulfate
    Antagonist 98.07%
    Atropine (Tropine tropate) sulfate is a broad-spectrum and competitive muscarinic acetylcholine receptor (mAChR) antagonist.
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