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

mAChR

Muscarinic acetylcholine receptor

mAChR

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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 Isoform Specific Products:

mAChR Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-76772
    Cevimeline hydrochloride hemihydrate
    		Agonist 99.52%
    Cevimeline hydrochloride hemihydrate (SNI-2011) is a quinuclidine derivative of acetylcholine and a selective and orally active muscarinic M1 and M3 receptor agonist. Cevimeline hydrochloride hemihydrate stimulates secretion by the salivary glands and can be used as a sialogogue for xerostomia. Cevimeline hydrochloride hemihydrate can cross the blood-brain barrier (BBB).
    Cevimeline hydrochloride hemihydrate
  • HY-112076
    Atropine methyl bromide
    		Antagonist 99.84%
    Atropine methyl bromide (Methylatropine bromide), an antagonist of muscarinic acetylcholine receptors (mAChR), is a quaternary ammonium salt of atropine and an active molecule used for pupil dilation during ophthalmic examinations. Due to its high polarity, it is used to relieve pyloric spasm in infants. It is less likely than atropine to cross the central nervous system.
    Atropine methyl bromide
  • HY-112209
    VU0467154
    		Agonist 99.23%
    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.
    VU0467154
  • HY-15618
    MK-7622
    		Agonist 99.80%
    MK-7622 (M1 receptor modulator) is an orally active positive allosteric modulator of muscarinic M1 acetylcholine receptors (mAChRs). MK-7622 enhances ACh-induced calcium flux in CHO cells expressing human M1 receptors (EC50 = 21 nM) and shows robust agonist activity in rat M1-expressing CHO cells, increasing intracellular calcium. MK-7622 reverses Scopolamine (HY-N0296)-induced cognitive deficits in rhesus macaques in an object retrieval detour task. MK-7622 can be used for the study of Alzheimer's disease (AD).
    MK-7622
  • HY-113995
    (-)-Vesamicol
    		Inhibitor 99.92%
    (-)-Vesamicol (AH5183) is a vesicular acetylcholine transporter inhibitor. (-)-Vesamicol reversibly and non-competitively inhibits the transport of acetylcholine into circulating synaptic vesicles and blocks the activity of vesicular acetylcholine transporters in medial amygdala neurons. (-)-Vesamicol is applicable to research related to central precocious puberty.
    (-)-Vesamicol
  • HY-148502
    VU6019650
    		Antagonist 99.83%
    VU6019650 is a potent and selective orthosteric antagonist of M5 mAChR (IC50=36 nM), can be used for opioid use disorder (OUD) relief. VU6019650 can cross blood brain barrier, potentially modulates the mesolimbic dopaminergic reward circuitry. VU6019650 blocks Oxotremorine M iodide (HY-101372A) induced increases of neuronal firing rates of midbrain dopamine neurons in the ventral tegmental area (VTA).
    VU6019650
  • 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.
    Promethazine hydrochloride
  • HY-A0024
    Tolterodine
    		Antagonist 98.61%
    Tolterodine ((R)-(+)-Tolterodine) is a mAChR inhibitor and substrate for cytochrome P450 enzymes. Tolterodine competitively binds acetylcholine, reduces sympathetic excitation, and inhibits involuntary bladder muscle contraction. Tolterodine restores the Nrf2/NF-κB signaling pathway, mediates protection against inflammatory response and ferroptosis. Tolterodine ameliorates LPS (HY-D1056)-induced reactive oxygen species production and lipid oxidation. Tolterodine can be used for the research of urinary tract infections and overactive bladder.
    Tolterodine
  • HY-14144
    Aclidinium Bromide
    		Antagonist 98.96%
    Aclidinium Bromide (LAS 34273; LAS-W 330) is a long-acting, inhaled muscarinic antagonist. Aclidinium Bromide has the potential for chronic obstructive pulmonary disease (COPD) research.
    Aclidinium Bromide
  • HY-A0082
    Diphenidol hydrochloride
    		Antagonist 99.06%
    Diphenidol hydrochloride (Difenidol hydrochloride) is a non-selective muscarinic M1-M4 receptor antagonist, has anti-arrhythmic activity. Diphenidol hydrochloride is also a potent non-specific blocker of voltage-gated ion channels (Na+, K+, and Ca2+) in neuronal cells. Diphenidol hydrochloride can be used in the study of antivertigo and antinausea.
    Diphenidol hydrochloride
  • HY-N0214
    Peimisine
    		Antagonist 99.51%
    Peimisine (Ebeiensine) is a muscarinic M receptor antagonist and angiotensin converting enzyme (ACE) inhibitor. Peimisine shows anti-tumor, anti-inflammatory, antihypertensive activities. Peimisine can induce apoptosis and be used in cough and asthma research.
    Peimisine
  • HY-32067
    Aceclidine
    		Modulator 99.23%
    Aceclidine (Quinuclidin-3-yl acetate) is a modulator of M3 muscarinic acetylcholine receptor and a M1 receptor agonist (EC50: 40 μM). Aceclidine is a cycloplegic agent, a surfactant, a tonicity adjustor and optionally a viscosity enhancer and an antioxidant. Aceclidine has the potential for the research of disorders such as refractive errors of the eye, xerostomia, Sjogren's syndrome, glaucoma, conjunctivitis, lacrimal gland disease, and esotropia.
    Aceclidine
  • HY-101086
    Acetylcholine iodide
    		98.59%
    Acetylcholine iodide is a muscarinic receptor modulator. Acetylcholine iodide specifically binds to muscarinic receptors, inhibits sodium absorption, and induces chloride secretion. Acetylcholine iodide changes intestinal ion transport, enhances intestinal secretory function, induces or maintains mammary gland development and lactation. Acetylcholine iodide can be used for intestinal ion transport regulation and mammary gland physiological function research.
    Acetylcholine iodide
  • HY-N8376
    Fustin
    		Inducer 99.6%
    Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) is a potent amyloid β (Aβ) inhibitor. Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) increases the expression of acetylcholine (ACh) levels, choline acetyltransferase (ChAT) activity, and ChAT gene induced by Aβ (1-42). Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) decreases in acetyl cholinesterase (AChE) activity and AChE gene expression induced by Aβ (1-42). Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) increases muscarinic M1 receptor gene expression and muscarinic M1 receptor binding activity. Fustinis ((±)-Fustin; 3,7,3',4'-Tetrahydroxyflavanone) can be used for Alzheimer's disease research.
    Fustin
  • HY-120023
    VU0453595
    		Agonist 99.90%
    VU0453595 is a highly selective, systemically active M1 positive allosteric modulator (PAM, EC50=2140 nM) for the research of schizophrenia.
    VU0453595
  • HY-B0267
    Oxybutynin
    		Antagonist 99.86%
    Oxybutynin is an anticholinergic agent, which inhibits vascular Kv channels in a concentration-dependent manner, with an IC50 of 11.51 μM. Oxybutynin is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Oxybutynin
  • HY-N2064
    Racanisodamine
    		Antagonist 98.75%
    Racanisodamine is one of the racemic isomers of anisodamine, resembles anisodamine in pharmacological effect. Racanisodamine is a non-selective muscarinic antagonist, used as a component of eye drops for myopic control.
    Racanisodamine
  • HY-B1180
    Vinburnine
    		Modulator 99.78%
    Vincamone is a vinca alkaloid and a metabolite of vincamine, is a vasodilator.
    Vinburnine
  • HY-131881
    JHU37160
    		Agonist 99.98%
    JHU37160 is a potent and brain-penetrant DREADD agonist, with EC50s of 18.5 nM and 0.2 nM for hM3Dq and hM4Di DREADDs in HEK-293 cells, respectively. JHU37160 exhibits selective [3H]Clozapine displacement from DREADDs and not from other Clozapine-binding sites in mice brain tissue.
    JHU37160
  • HY-A0034
    Solifenacin
    		Antagonist 99.77%
    Solifenacin (YM905 free base) is a novel muscarinic receptor antagonist with pKis of 7.6, 6.9 and 8.0 for M1, M2 and M3 receptors, respectively.
    Solifenacin
Cat. No. Product Name / Synonyms Application Reactivity
mAChR Isoform Comparison

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