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

mAChR

Muscarinic acetylcholine receptor

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-106432A
    Sabcomeline hydrochloride
    Agonist 99.81%
    Sabcomeline (SB-202026; Memric) hydrochloride is a muscarinic receptor agonist capable of crossing the blood-brain barrier. Sabcomeline hydrochloride exhibits affinity for all hM1 to hM5 subtypes (pKi=6.72-7.23), and shows near-full agonism at the hM3 receptor, inducing extracellular acidification. Sabcomeline hydrochloride alters the binding kinetics of dopamine D2 receptors through neural network regulation. Sabcomeline hydrochloride also causes minimal cardiovascular changes, effectively reverses spatial memory deficits in rodents and induces conditioned taste aversion. Sabcomeline hydrochloride is an important tool compound in studies of Alzheimer's disease and related neurodegenerative diseases.
    Sabcomeline hydrochloride
  • HY-N0584
    Anisodamine
    Antagonist 99.02%
    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.
    Anisodamine
  • HY-B0298
    Clemastine
    Antagonist 99.26%
    Clemastine (HS-592; Meclastine) is an orally active, blood-brain barrier-permeable H1 histamine receptor (H1 histamine receptor) antagonist with potent antiallergic effects. Clemastine also antagonizes muscarinic acetylcholine receptors (mAChR), particularly the M1 and M4 subtypes. In addition to antihistamine effects, Clemastine exhibits multiple pharmacological activities, especially in promoting central nervous system remyelination, activating autophagy and pyroptosis, exerting anti-apoptotic and neuroprotective effects, and suppressing inflammation.
    Clemastine
  • HY-116294A
    Methoctramine tetrahydrochloride
    Antagonist 98.72%
    Methoctramine tetrahydrochloride is a potent and cardioselectivity antagonist of M2 muscarinic receptor. Methoctramine tetrahydrochloride can inhibit Muscarine (HY-121404)-induced bradycardia in vivo. Methoctramine tetrahydrochloride can be used in the study of cardiovascular diseases.
    Methoctramine tetrahydrochloride
  • HY-N0110B
    Palmatine hydroxide
    99.64%
    Palmatine hydroxide is an orally active and irreversible indoleamine 2,3-dioxygenase 1 (IDO-1) inhibitor with IC50s of 3 μM and 157μM against HEK 293-hIDO-1 and rhIDO-1, respectively. Palmatine hydroxide can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine hydroxide shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities.
    Palmatine hydroxide
  • HY-106353
    Smilagenin
    Agonist 98.0%
    Smilagenin (SMI) is a small-molecule steroidal sapogenin from Anemarrhena asphodeloides and Pelargonium hortorum widely used in traditional Chinese medicine for treating chronic neurodegeneration diseases. Smilagenin (SMI) improves memory of aged rats by increasing the muscarinic receptor subtype 1 (M1)-receptor density. Smilagenin (SMI) attenuates Aβ(25-35)-induced neurodegenerationvia stimulating the gene expression of brain-derived neurotrophic factor, may represents a novel therapeutic strategy for AD.
    Smilagenin
  • HY-76570
    (Rac)-5-Hydroxymethyl Tolterodine
    Antagonist 99.05%
    (Rac)-5-Hydroxymethyl Tolterodine ((Rac)-Desfesoterodine), an active metabolite of Tolterodine, is a mAChR antagonist (Ki values of 2.3 nM, 2 nM, 2.5 nM, 2.8 nM, and 2.9 nM for M1, M2, M3, M4, and M5 receptors, respectively). (Rac)-5-Hydroxymethyl Tolterodine can be used for overactive bladder research.
    (Rac)-5-Hydroxymethyl Tolterodine
  • HY-B0267A
    Oxybutynin chloride
    Antagonist 98.49%
    Oxybutynin chloride is an oral active and competitive mAChR antagonist with Kis of 14.3 and 5.55 nM for specific [3H]NMS binding in the mouse bladder and cerebral cortex, respectively. Oxybutynin chloride inhibits vascular Kv channels in a manner independent of anticholinergic effect, with an IC50 value of 11.51 μM. Oxybutynin chloride reduces muscle spasm in the bladder and urinary tract, can be used in study of overactive bladder syndrome (OAB). Oxybutynin (chloride) 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 chloride
  • HY-13204A
    Biperiden
    Inhibitor 99.74%
    Biperiden (KL 373) is a non-selective muscarinic receptor antagonist that competitively binds to M1 muscarinic receptors, thereby inhibiting acetylcholine and enhancing dopamine signaling in the central nervous system. Biperiden has the potential for the research of Parkinson's disease and other related psychiatric disorders.
    Biperiden
  • HY-19752A
    VU0357017 hydrochloride
    Agonist 98.63%
    VU0357017 hydrochloride (CID-25010775) is a potent, selective and brain-penetrant allosteric agonist of M1 muscarinic acetylcholine receptor, with an EC50 of 477 nM. VU0357017 hydrochloride is highly selective for M1 and has no activity at M2-M5 up to the highest concentrations tested (30 μM). VU0357017 hydrochloride can be used for the research of Alzheimer’s disease and schizophrenia.
    VU0357017 hydrochloride
  • HY-15885
    LY2119620
    Agonist 99.74%
    LY2119620 is a high-affinity muscarinic M2/M4 receptor agonist.
    LY2119620
  • HY-N5016
    Guvacoline hydrochloride
    Activator 98.0%
    Guvacoline hydrochloride, a pyridine alkaloid found in Areca triandra, can act as a weak full agonist of atrial and ileal muscarinic receptors.
    Guvacoline hydrochloride
  • HY-12100
    Umeclidinium bromide
    Antagonist 99.72%
    Umeclidinium bromide is a novel mAChR antagonist. The affinity (Ki) of Umeclidinium bromide for the cloned human M1-M5 mAChRs ranges from 0.05 to 0.16 nM.
    Umeclidinium bromide
  • HY-107416
    RHC 80267
    Inhibitor 99.41%
    RHC 80267 (U-57908) is a potent and selective inhibitor of diacylglycerol lipase (DAGL) (with IC50 of 4 μM in canine platelets). RHC-80267 inhibits cholinesterase activity with an IC50 of 4 μM, thereby enhancing the relaxation evoked by acetylcholine. RHC 80267 also inhibits COX and the hydrolysis of phosphatidylcholine (PC).
    RHC 80267
  • HY-G0021
    N-Desmethylclozapine
    Agonist 99.10%
    N-Desmethylclozapine is a major active metabolite of the atypical antipsychotic agent Clozapine. N-Desmethylclozapine is a potent, allosteric and partial M1 receptors agonist (EC50=115 nM) and is able to potentiate hippocampal N-methyl-d-aspartate (NMDA) receptor currents through M1 receptor activation. N-Desmethylclozapine is also a δ-opioid agonist.
    N-Desmethylclozapine
  • HY-107111
    GSK1034702
    Agonist 99.78%
    GSK1034702 is an orally active and allosteric agonist of M1 mAChR (pEC50=8.1) that can cross the blood-brain barrier. GSK1034702 activates the Gq/11 protein-mediated signaling pathway, enhancing neuronal firing and long-term potentiation (LTP) in the CA1 region of the hippocampus. GSK1034702 can modulate hippocampal function, improve memory encoding in the nicotine withdrawal cognitive dysfunction model, and show pro-cognitive effects in rodents. GSK1034702 can be used for the study of the mechanisms of cognitive impairment diseases such as Alzheimer's disease, and has certain peripheral M receptor activation-related side effects (such as gastrointestinal reactions).
    GSK1034702
  • HY-B1487
    Procyclidine hydrochloride
    Antagonist 99.55%
    Procyclidine (Tricyclamol, (±)-Procyclidine) hydrochloride , an anticholinergic agent, is a muscarinic receptor antagonist that also has the properties of an N-methyl-D-aspartate (NMDA) antagonist. Procyclidine hydrochloride can be used in studies of Parkinson's disease and related psychiatric disorders such as Soman-induced epilepsy.
    Procyclidine hydrochloride
  • HY-101858
    BQCA
    Inhibitor 98.03%
    BQCA a highly selective allosteric modulator of the M1 mAChR.
    BQCA
  • HY-16657A
    (S,S)-TAPI-1
    Antagonist 99.44%
    (S,S)-TAPI-1 is an isomer of TAPI-1. TAPI-1 is a TACE (ADAM17) inhibitor and blocks the shedding of several cell surface proteins. TAPI-1 is also a metalloproteinase (MMP) inhibitor.
    (S,S)-TAPI-1
  • HY-12567
    ML375
    Inhibitor 99.64%
    ML375 (VU0483253) is a potent, highly selective, brain-penetrant and orally active M5 mAChR negative allosteric modulator (NAM) with IC50s of 300 nM and 790 nM for human and rat M5, respectively. ML375 is inactive at human and rat M1-M4.
    ML375
Cat. No. Product Name / Synonyms Application Reactivity

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