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-112076A
    Atropine methyl nitrate
    Antagonist
    Atropine methyl bromide, a muscarinic receptor (mAChR) antagonist, is a quaternary ammonium salt of atropine and a mydriatic for dilation of the pupil during ophthalmic examination. It is introduced for relieving pyloric spasm in infants for its highly polar nature. It penetrates less readily into the central nervous system than atropine.
    Atropine methyl nitrate
  • HY-124223
    AF-DX 384 methanesulfonate
    Antagonist
    AF-DX 384 (methanesulfonate) is a selective antagonist of M2 and M4 muscarinic acetylcholine receptors (Kis=6.03 and 10 nM, respectively). AF-DX 384 (methanesulfonate) reverses deficits in novel object recognition and passive avoidance in aged rats, as well as in young rats with impairments induced by scopolamine.
    AF-DX 384 methanesulfonate
  • HY-A0002R
    Solifenacin Succinate (Standard)
    Antagonist
    Solifenacin (Succinate) (Standard) is the analytical standard of Solifenacin (Succinate). This product is intended for research and analytical applications. Solifenacin Succinate (YM905) is a novel muscarinic receptor antagonist with pKis of 7.6, 6.9 and 8.0 for M1, M2 and M3 receptors, respectively.
    Solifenacin Succinate (Standard)
  • HY-100795
    Pirmenol
    Inhibitor
    Pirmenol is an orally active antiarrhythmic agent. Pirmenol inhibits IK.ACh (IC50: 0.1 μM) by blocking mAchR. Pirmenol can be used in the research of cardiovascular disease, such as atrial fibrillation.
    Pirmenol
  • HY-169814
    LU-25-077
    Agonist
    Lu 25-077 is a brain-penetrant and pharmacologically active N-demethyl metabolite of Lu 25-109 (HY-101586), a partial M1 agonist and M2/M3 antagonist. Lu 25-077 can be utilized in neurological research.
    LU-25-077
  • HY-114743
    GS 283
    Antagonist
    GS 283 is a compound with calcium antagonist and weak histamine and muscarinic receptor blocking activity, with activity in modulating contraction of guinea pig and rat tracheal smooth muscle. GS 283 inhibits contractions induced by carbachol, histamine (guinea pig only), and high H+ in guinea pig and rat tracheal smooth muscle, inhibits Ca2+-induced contractions in guinea pig tracheal smooth muscle, and at high concentrations completely abolishes contractions induced by carbachol in Ca2+-free medium.
    GS 283
  • HY-137040A
    Tiemonium iodide
    Antagonist
    Tiemonium iodide is a mAChR antagonist with antispasmodic properties. Tiemonium iodide can be used in nervous system research.
    Tiemonium iodide
  • HY-76570S1
    5-Hydroxymethyl Tolterodine-d14 formate
    Antagonist
    5-Hydroxymethyl Tolterodine-d14 (formate) is deuterium labeled (Rac)-5-Hydroxymethyl Tolterodine. (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.
    5-Hydroxymethyl Tolterodine-d<sub>14</sub> formate
  • HY-W309130
    (S)-Tolterodine
    Inhibitor
    (S)-Tolterodine is a muscarinic acetylcholine receptor (mAChR) inhibitor, with an IC50 of 588 nM.
    (S)-Tolterodine
  • HY-172339
    4-AcO-DALT hydrochloride
    Inhibitor
    4-AcO-DALT hydrochloride is a tryptamine compound with psychoactive effects. 4-AcO-DALT hydrochloride inhibits 5-HT receptors, alpha receptors, dopamine receptors, histamine receptor 1 (H1), muscarinic M2 receptor and Sigma 2 receptor. 4-AcO-DALT hydrochloride shows Ki values of 582 nM, 2689 nM, 2099 nM, 2116 nM, 958 nM, 137 nM, 824 nM, 479 nM, 406 nM, 874 nM, 4190 nM, 482 nM, 214 nM, 803 nM, 4522 nM, 1907 nM for 5-HT1B, 5-HT1D, 5-HT1E, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT6, 5-HT7A, H1, Sigma 2, α2A, α2B, α2C, D2, D3 receptors.
    4-AcO-DALT hydrochloride
  • HY-B1277R
    Trihexyphenidyl hydrochloride (Standard)
    Antagonist
    Trihexyphenidyl (hydrochloride) (Standard) is the analytical standard of Trihexyphenidyl (hydrochloride). This product is intended for research and analytical applications. Trihexyphenidyl hydrochloride is a potent and selective M1 muscarinic receptor antagonist. Trihexyphenidyl hydrochloride shows anticholinergic activity, and can be used for Parkinson syndrome or dystonia research.
    Trihexyphenidyl hydrochloride (Standard)
  • HY-14786
    Darotropium bromide
    Antagonist
    Darotropium bromide (GSK233705), a long-acting muscarinic antagonist and an inhaled anticholinergic, can be used for the research of chronic obstructive pulmonary disease (COPD).
    Darotropium bromide
  • HY-118806
    AC-42
    Agonist
    AC-42 is a poent M1 muscarinic selective allosteric agonist with EC50s of 805 nM and 220 nM for human wild-type and Y381A mutated M1 receptors, respectively. AC-42 stimulates the IP-accumulation and calcium mobilization in CHO cells.
    AC-42
  • HY-146102
    M1 ligand 1
    M1 ligand 1 (compound 3b-b) is a muscarinic acetylcholine receptor M1 ligand. M1 ligand 1 is a N-desmethyl congener of arecoline derivative. M1 ligand 1 can be used as PET (positron emission tomography) radiotracer.
    M1 ligand 1
  • HY-G0021R
    N-Desmethylclozapine (Standard)
    Agonist
    N-Desmethylclozapine (Standard) is the analytical standard of N-Desmethylclozapine. This product is intended for research and analytical applications. 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 (Standard)
  • HY-167699
    Cyclodrine
    Antagonist
    Cyclodrine is a cholinergic receptor antagonist that exhibits biological activity by influencing both muscarinic and nicotinic receptors.
    Cyclodrine
  • HY-107653
    J 104129 fumarate
    Antagonist
    J 104129 fumarate is a selective and orally active muscarinic M3 antagonist with Ki values of 4.2 nM and 490 nM for M3 and M2, respectively. J 104129 fumarate antagonized ACh-induced bronchoconstriction. J 104129 fumarate has the potential for the research of obstructive airway disease.
    J 104129 fumarate
  • HY-116408AS
    Propiverine-d7 hydrochloride
    Inhibitor
    Propiverine-d7 (hydrochloride) is the deuterium labeled Propiverine hydrochloride. Propiverine hydrochloride is a bladder spasmolytic with calcium antagonistic and anticholinergic properties. Propiverine hydrochloride can be used for the research of overactive blaqdder and urinary incontinence.
    Propiverine-d<sub>7</sub> hydrochloride
  • HY-108030
    Bencycloquidium bromide
    Inhibitor
    Bencycloquidium bromide, a muscarinic M(3) receptor antagonist, is an anticholinergic compound that acts as an anticholinergic bronchodilator. Bencycloquidium bromide can be used in the study for rhinitis.
    Bencycloquidium bromide
  • HY-12100S
    Umeclidinium-d5 bromide
    Antagonist
    Umeclidinium-d5 (bromide) is the deuterium labeled Umeclidinium bromide. 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-d<sub>5</sub> bromide
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