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.


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mAChR-IN-1 hydrochloride

mAChR-IN-1 hydrochloride is a potent muscarinic cholinergic receptor (mAChR) antagonist, with an IC50 of 17 nM[1].

  • CAS Number: 119391-73-0
  • MF: C23H26ClIN2O2
  • MW: 524.82
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Camylofine

Camylofin is an antimuscarinic, is a smooth muscle relaxant

  • CAS Number: 54-30-8
  • MF: C19H32N2O2
  • MW: 320.47000
  • Catalog: mAChR
  • Density: 0.987g/cm3
  • Boiling Point: 408.4ºC at 760mmHg
  • Melting Point: 25°C
  • Flash Point: 200.8ºC

Navafenterol

Navafenterol (AZD-8871) is an inhaled dual-acting, potent, selective, and long-lasting M3-antagonist/β2-agonist (MABA) with long-lasting effects and favorable safety profile. The pIC50 is 9.5 for human M3 receptor, and the pEC50 is 9.5 for β2-adrenoceptor. Navafenterol can be used for the research of chronic obstructive pulmonary disease (COPD). Bronchoprotective and antisialagogue effects. Favorable cardiovascular profile[1].

  • CAS Number: 1435519-06-4
  • MF: C38H42N6O6S2
  • MW: 742.91
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Nebracetam hydrochloride

Nebracetam hydrochloride, a nootropic M1-muscarinic agonist, induces a rise of intracellular Ca2+ concentration. Nebracetam hydrochloride exhibits an EC50 of 1.59 mM for elevating [Ca2+]i[1].

  • CAS Number: 1177279-49-0
  • MF: C12H17ClN2O
  • MW: 240.73
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Ethybenztropine

Ethybenztropine (Ponalid) is a muscarinic receptor blocker. Ethybenztropine is an anticholinergic and antihistaminergic agent[1].

  • CAS Number: 524-83-4
  • MF: C22H27NO
  • MW: 321.45600
  • Catalog: mAChR
  • Density: 1.1g/cm3
  • Boiling Point: 422.8ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 124ºC

Olanzapine

Olanzapine(LY170053) is a high affinity for 5-HT2 serotonin and D2 dopamine receptor antagonist.IC50 Value:Target: 5-HT ReceptorOlanzapine is a thienobenzodiazepine that blocks especially the serontonin (5-hydroxytryptamine [5-HT]) 5-HT2A and the dopamine D2 receptors (Ki values are 4 and 11 nM respectively) as well as muscarinic (M1), histamine (H1), 5-HT2C, 5-HT3 to 5-HT6, adrenergic (α(l)), and D4 receptors. Atypical antipsychotic for the treatment of schizophrenia. Olanzapine displays anticholinergic properties.

  • CAS Number: 132539-06-1
  • MF: C17H20N4S
  • MW: 312.432
  • Catalog: Apoptosis
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 476.0±55.0 °C at 760 mmHg
  • Melting Point: 195°C
  • Flash Point: 241.7±31.5 °C

PD 102807

PD 102807 is a M4 muscarinic receptor antagonist with an IC50 of 90.7 nM. PD 102807 inhibits M1, M2, M3, M5 muscarinic receptor with IC50s of 6558.7, 3440.7, 950.0, and 7411.7 nM, respectively[1]. Antidyskinetic effect.

  • CAS Number: 23062-91-1
  • MF: C23H24N2O4
  • MW: 392.45
  • Catalog: mAChR
  • Density: 1.34g/cm3
  • Boiling Point: 586ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 308.2ºC

Cyclodrine hydrochloride

Cyclodrine hydrochloride is a cholinergic (muscarinic, nicotinic) (mAChR and nAChR) receptor antagonist.

  • CAS Number: 78853-39-1
  • MF: C19H30ClNO3
  • MW: 355.89900
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

VU6028418

VU6028418 (VU 6028418) is a potent, highly selective, orally bioavailable M4 mAChR antagonist for the treatment of dystonia and other movement disorders.

  • CAS Number: 2649803-05-2
  • MF: C23H27F3N4O
  • MW: 432.491
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Octamylamine

Octamylamine is an anticholinergic and antispasmodic agent[1].

  • CAS Number: 502-59-0
  • MF: C13H29N
  • MW: 199.37600
  • Catalog: mAChR
  • Density: 0.787g/cm3
  • Boiling Point: 229.3ºC at 760mmHg
  • Melting Point: 18°C (estimate)
  • Flash Point: 72.4ºC

Hyoscyamine

L-Hyoscyamine is a chemical compound, a tropane alkaloid it is the levo-isomer to atropine.Target: mAChRHyoscyamine is a chemical compound, a tropane alkaloid it is the levo-isomer to atropine. It is a secondary metabolite of some plants, particularly henbane (Hyoscamus niger.)Hyoscyamine is used to provide symptomatic relief to various gastrointestinal disorders including spasms, peptic ulcers, irritable bowel syndrome, pancreatitis, colic and cystitis. It has also been used to relieve some heart problems, control some of the symptoms of Parkinson's disease, as well as for control of respiratory secretions in end of life care [1].

  • CAS Number: 101-31-5
  • MF: C17H23NO3
  • MW: 289.369
  • Catalog: mAChR
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 429.8±45.0 °C at 760 mmHg
  • Melting Point: 108.5ºC
  • Flash Point: 213.7±28.7 °C

Peimisine hydrochloride

Peimisine (Ebeiensine) hydrochloride non-competitively antagonizes tracheal smooth muscle muscarinic M receptor and inhibits smooth muscle contraction caused by Ach. Peimisine hydrochloride excits β-receptor, restrains the release of internal calcium, and promotes to releaseing NO in order to relax tracheal smooth muscle and relieve asthma[1].

  • CAS Number: 900498-44-4
  • MF: C27H42ClNO3
  • MW: 464.080
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

LY320135

LY320135 is a potent and selective antagonist of CB1 receptor, with a Ki of 141 nM. LY320135 also binds to 5-HT2 and muscarinic receptors with Kis of 6.4 μM and 2.1 μM, respectively. LY320135 exhibits neuroprotective effect[1][2].

  • CAS Number: 176977-56-3
  • MF: C24H17NO4
  • MW: 383.39600
  • Catalog: 5-HT Receptor
  • Density: 1.31g/cm3
  • Boiling Point: 617.2ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 327.1ºC

G Protein Antagonist

G-Protein antagonist peptide is the substance P-related peptide that inhibits binding of G proteins to their receptors. G-Protein antagonist peptide competitively and reversibly inhibits M2 muscarinic receptor activation of Gi or Go and inhibits Gs activation by β-adrenoceptors.

  • CAS Number: 143675-79-0
  • MF: C57H64N12O9S
  • MW: 1093.26000
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

MK-7622

MK-7622 is a muscarinic M1 receptor positive allosteric modulator.Target: M1 receptorMK-7622 is useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimer's disease, schizophrenia, pain or sleep disorders.

  • CAS Number: 1227923-29-6
  • MF: C25H25N3O2
  • MW: 399.485
  • Catalog: mAChR
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 643.0±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 342.7±34.3 °C

(±)-Darifenacin

(±)-Darifenacin is the racemate of Darifenacin. Darifenacin is a selective M3 muscarinic receptor antagonist[1].

  • CAS Number: 133033-93-9
  • MF: C28H30N2O2
  • MW: 426.55
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Darifenacin HBr

Darifenacin HBr(UK88525) is a selective M3 muscarinic receptor antagonist with pKi of 8.9.IC50 value: 8.9 (pKi) [1]Target: M3 receptorin vitro: Darifenacin exerts non-parallel rightward displacement of the agonist curve and also significant depression of the maximum response (+)-cis-Dioxolane produced concentration-dependent contraction of the isolated bladder of rat [1]. Darifenacin produces a concentration dependent increase in R123 (P-gp probe) accumulation in MDCK cells. Darifenacin stimulates ATPase activity in P-gp membrane in a clear concentration dependent response manner with an estimated ED50 value of 1.6?μM. Darifenacin (100 nM) shows a significantly greater permeability for darifenacin in the basolateral to apical direction resulting in an efflux ratio in BBMEC monolayers of approximately 2.6 [2].in vivo: Darifenacin produces dose-dependent inhibition of amplitude of volume-induced bladder contractions(VIBCAMP), producing 35% inhibition at dose of 283.3 nmol/kg and maximal inhibition of approximately 50–55% [1]. Darifenacin (0.1 mg/kg i.v.) reduces bladder afferent activity in both Aδ and C fibers in female Sprague-Dawley rats, the decrease in afferent spikes in C fibers may be more pronounced than that in Aδ fibers [3].

  • CAS Number: 133099-07-7
  • MF: C28H31BrN2O2
  • MW: 507.46
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: 614.3ºC at 760 mmHg
  • Melting Point: 228-230ºC
  • Flash Point: 325.3ºC

Olanzapine D3

Olanzapine D3 (LY170053 D3) is the deuterium labeled Olanzapine. Olanzapine is 5-HT2 and D1/D2 antagonist. Olanzapine is an antipsychotic agent with anticholinergic properties[1]. Olanzapine induces autophagy, mitochondrial damage and mitophagy in human SH-SY5Y neuronal cell line[2].

  • CAS Number: 786686-79-1
  • MF: C17H17D3N4S
  • MW: 315.45100
  • Catalog: Apoptosis
  • Density: 1.337g/cm3
  • Boiling Point: 476.035ºC at 760 mmHg
  • Melting Point: 188-190ºC
  • Flash Point: 241.697ºC

MK-6884

MK-6884 is a M4 muscarinic receptor positive allosteric modulator (PAM) with a Ki value of 0.19 nM. MK-6884 can be used for the research of the neurodegenerative diseases. MK-6884 can be conveniently radiolabeled with carbon-11 and as a positron emission tomography (PET) imaging agent[1].

  • CAS Number: 2102194-04-5
  • MF: C25H25N5O
  • MW: 411.50
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(R,R)-Reboxetine mesylate

(R,R)-Reboxetine mesylate is an antidepressant agent with great bioavailability. (R,R)-Reboxetine is the enantiomer of Reboxetine, which is a selective noradrenaline reuptake inhibitor. Reboxetine consists of (R,R) and (S,S) enantiomer, has low affinity for alpha-adrenergic and muscarinic receptors and low toxicity in animals[1][2].

  • CAS Number: 105017-39-8
  • MF: C20H27NO6S
  • MW: 409.50
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Darifenacin

Darifenacin(UK88525) is a selective M3 muscarinic receptor antagonist with pKi of 8.9.IC50 value: 8.9 (pKi) [1]Target: M3 receptorin vitro: Darifenacin exerts non-parallel rightward displacement of the agonist curve and also significant depression of the maximum response (+)-cis-Dioxolane produced concentration-dependent contraction of the isolated bladder of rat [1]. Darifenacin produces a concentration dependent increase in R123 (P-gp probe) accumulation in MDCK cells. Darifenacin stimulates ATPase activity in P-gp membrane in a clear concentration dependent response manner with an estimated ED50 value of 1.6 μM. Darifenacin (100 nM) shows a significantly greater permeability for darifenacin in the basolateral to apical direction resulting in an efflux ratio in BBMEC monolayers of approximately 2.6 [2].in vivo: Darifenacin produces dose-dependent inhibition of amplitude of volume-induced bladder contractions(VIBCAMP), producing 35% inhibition at dose of 283.3 nmol/kg and maximal inhibition of approximately 50–55% [1]. Darifenacin (0.1 mg/kg i.v.) reduces bladder afferent activity in both Aδ and C fibers in female Sprague-Dawley rats, the decrease in afferent spikes in C fibers may be more pronounced than that in Aδ fibers [3].

  • CAS Number: 133099-04-4
  • MF: C28H30N2O2
  • MW: 426.550
  • Catalog: mAChR
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 614.3±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 325.3±31.5 °C

Benztropine Mesylate

Benzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease.Target: mAChRBenzotropine is a centrally-acting, antimuscarinic agent used as an adjunct in the treatment of Parkinson's disease. It may also be used to treat extrapyramidal reactions, such as dystonia and Parkinsonism, caused by antipsychotics. Symptoms of Parkinson's disease and extrapyramidal reactions arise from decreases in dopaminergic activity which creates an imbalance between dopaminergic and cholinergic activity. Anticholinergic therapy is thought to aid in restoring this balance leading to relief of symptoms. In addition to its anticholinergic effects, benztropine also inhibits the reuptake of dopamine at nerve terminals via the dopamine transporter. Benzotropine also produces antagonistic effects at the histamine H1 receptor [1, 2].Benztropine (BZT) and its analogues inhibit dopamine uptake and bind with moderate to high affinity to the dopamine transporter (DAT). BZT analogues also exhibit varied binding affinities for muscarinic M(1) and histamine H(1) receptors. The BZT analogues showed a wide range of histamine H(1) receptor (K(i)=16-37,600 nM) and DAT (K(i)=8.5-6370 nM) binding affinities [3].

  • CAS Number: 132-17-2
  • MF: C22H29NO4S
  • MW: 403.535
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: 547.8ºC at 760 mmHg
  • Melting Point: 135 °C(lit.)
  • Flash Point: 285.1ºC

VU 0255035

VU 0255035 is a highly selective, competitive and brain penetrant muscarinic M1 receptor antagonist with an IC50 of 130 nM. VU 0255035 reduces pilocarpine-induced seizures in mice. VU0255035 is used to examine the role of the M1 receptor in diverse situations[1].

  • CAS Number: 1135243-19-4
  • MF: C18H20N6O3S2
  • MW: 432.52000
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: 689.3±65.0°C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: N/A

M3 receptor antagonist 1

M3 receptor antagonist 1 is a muscarinic M3-receptor antagonist extracted from patent WO 2008012290 A2, formula Ic.

  • CAS Number: 1004312-94-0
  • MF: C27H25BrF4N2O3S
  • MW: 613.46
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

VU0152099

VU0152099 is a potent, selective, CNS-penetrant positive allosteric modulator of M4 mAChR with EC50 of 403 nM; shows no agonist activity but potentiates responses of M(4) to acetylcholine, and is devoid of activity at other mAChR subtypes or at a panel of other GPCRs; reverses amphetamine-induced hyperlocomotion in rats.

  • CAS Number: 612514-42-8
  • MF: C18H17N3O3S
  • MW: 355.411
  • Catalog: mAChR
  • Density: 1.4±0.1 g/cm3
  • Boiling Point: 622.9±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 330.5±31.5 °C

rac Fesoterodine-d14 Fumarate

(Rac)-Fesoterodine-d14 fumarate is a labelled racemic Fesoterodine. Fesoterodine 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 is used for the overactive bladder (OAB)[1][2].

  • CAS Number: 1185237-08-4
  • MF: C30H27D14NO7
  • MW: 541.73500
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

AC260584

AC260584 is an M1 muscarinic receptor allosteric agonist with a pEC50 of 7.6.

  • CAS Number: 560083-42-3
  • MF: C20H29FN2O2
  • MW: 348.45500
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Diethylaminoethyl

Aprophen (Aprofene) is an antimuscarinic inhibitor. Aprophen can be used for the research of central nervous system[1].

  • CAS Number: 3563-01-7
  • MF: C21H27NO2
  • MW: 325.44500
  • Catalog: mAChR
  • Density: 1.041g/cm3
  • Boiling Point: 434.8ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 132.5ºC

Pirmenol

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[1][2][4].

  • CAS Number: 68252-19-7
  • MF: C22H30N2O
  • MW: 338.48600
  • Catalog: mAChR
  • Density: 1.046g/cm3
  • Boiling Point: 499.6ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 256ºC

dicycloverine

Dicyclomine (Dicycloverine) is a potent and orally active muscarinic cholinergic receptors antagonist. Dicyclomine (Dicycloverine) shows high affinity for muscarinic M1 receptor subtype (Ki=5.1 nM) and M2 receptor subtype (Ki=54.6 nM) in brush-border membrane and basal plasma membranes, respectively[1]. Dicyclomine is an antispasmodic agent and relieves smooth muscle spasm of the gastrointestinal tract in vivo[2].

  • CAS Number: 77-19-0
  • MF: C19H35NO2
  • MW: 309.48700
  • Catalog: Bacterial
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A