McN-A-343
Based on 2 publication(s) in Google Scholar
McN-A-343 is a selective M1 muscarinic agonist that stimulates muscarinic transmission in sympathetic ganglia. McN-A-343 produces a significant inhibitory effect on Muscarine (HY-121404)-evoked catecholamine secretion from the isolated perfused rat adrenal gland. McN-A-343 is involved in the regulation of neuronal firing and activates enteroendocrine L cells to release glucagon-like peptide 1 (GLP-1) and modulates the secretion of α-melanocyte stimulating hormone (α-MSH) from the pituitary gland in the central nervous system. McN-A-343 reduces colonic inflammation and oxidative stress in Acetic acid (HY-Y0319)-induced ulcerative colitis (UC) mice. McN-A-343 can be used for the study of ulcerative colitis.
For research use only. We do not sell to patients.
- Purity: 99.89%
- CAS No.: 55-45-8
- Formula: C14H18Cl2N2O2
- Molecular Weight:317.21
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) McN-A-343
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Biological Activity
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mAChR1 |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| CHO | EC50 |
3.5 μM
Compound: McN-A-343
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Effective concentration for HMPA (human muscarinic inositol phosphate accumulation) activity measured in CHO cells expressing Muscarinic acetylcholine receptor M1
Effective concentration for HMPA (human muscarinic inositol phosphate accumulation) activity measured in CHO cells expressing Muscarinic acetylcholine receptor M1
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10.1016/S0960-894X(00)80538-7 |
| CHO | IC50 |
12.93 μM
Compound: McN-A-343
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Inhibitory activity against human Muscarinic acetylcholine receptor M2 using [3H]quinuclidinyl benzilate to label antagonist site (RQNB) in CHO cells
Inhibitory activity against human Muscarinic acetylcholine receptor M2 using [3H]quinuclidinyl benzilate to label antagonist site (RQNB) in CHO cells
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10.1016/S0960-894X(00)80538-7 |
| CHO | IC50 |
4 μM
Compound: McN-A-343
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Inhibitory activity against human Muscarinic acetylcholine receptor M1 using [3H]quinuclidinyl benzilate to label antagonist site (RQNB) in CHO cells
Inhibitory activity against human Muscarinic acetylcholine receptor M1 using [3H]quinuclidinyl benzilate to label antagonist site (RQNB) in CHO cells
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10.1016/S0960-894X(00)80538-7 |
McN-A-343 (30 μM) produces a significant inhibitory effect on muscarine-evoked catecholamine secretion from the isolated perfused rat adrenal gland[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:200 μL of 6% Acetic acid solution was intracolonically administered via a polyethylene cannula inserted 3 cm into the anus of Swiss mice (25-30 g) to induce ulcerative colitis[1]
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Dosage:0.5, 1.0, 1.5 mg/kg
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Administration:i.p., single dose
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Result:Achieved significant reduction in colonic macroscopic lesion scores, colon wet weight, and MPO activity.
Reduced colonic oxidative stress markers (MDA, GSH).
Lowered colonic pro-inflammatory cytokine levels.
Downregulated colonic IKKα, NF-κB-p65, COX-2 mRNA, and reduced NF-κB, COX-2.
Chemical Information
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CAS No. 55-45-8
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Appearance Solid
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Molecular Weight 317.21
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Formula C14H18Cl2N2O2
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Color White to off-white
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SMILES
O=C(NC1=CC(Cl)=CC=C1)OCC#CC[N+](C)(C)C.[Cl-]
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (2)
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Journal Impact Factor
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Most Recent
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Nat Commun
Histamine H1 receptors in dentate gyrus-projecting cholinergic neurons of the medial septum suppress contextual fear retrieval in mice. [Abstract]2024 Jul 10;15(1):5805. PMID: 38987240 -
Int J Mol Sci
Structural Insights into M1 Muscarinic Acetylcholine Receptor Signaling Bias between Gαq and β-Arrestin through BRET Assays and Molecular Docking. [Abstract]2023 Apr 16;24(8):7356. PMID: 37108518
Solvent & Solubility
H2O : 100 mg/mL (315.25 mM; Need ultrasonic)
DMSO : 100 mg/mL (315.25 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (7.88 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (7.88 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Purity & Documentation
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Data Sheet (273 KB)
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SDS (396 KB)
- English - EN (396 KB)
- Français - FR (396 KB)
- Deutsch - DE (396 KB)
- Norwegian - NO (396 KB)
- Español - ES (396 KB)
- Swedish - SV (396 KB)
- Italian - IT (396 KB)
- Portuguese - PT (396 KB)
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Handling Instructions (2659 KB)
References
[1]. Magalhães DA, et al. McN-A-343, a muscarinic agonist, reduces inflammation and oxidative stress in an experimental model of ulcerative colitis. Life Sci. 2021 May 1;272:119194. [Content Brief]
[2]. Wakade AR, et al. McN-A-343, a specific agonist of M1-muscarinic receptors, exerts antinicotinic and antimuscarinic effects in the rat adrenal medulla. Life Sci. 1986 Dec 1;39(22):2073-80. [Content Brief]
[3]. Mitchelson FJ. The pharmacology of McN-A-343. Pharmacol Ther. 2012 Aug;135(2):216-45. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| H2O / DMSO | 1 mM | 3.1525 mL | 15.7624 mL | 31.5249 mL | 78.8121 mL |
| 5 mM | 0.6305 mL | 3.1525 mL | 6.3050 mL | 15.7624 mL | |
| 10 mM | 0.3152 mL | 1.5762 mL | 3.1525 mL | 7.8812 mL | |
| 15 mM | 0.2102 mL | 1.0508 mL | 2.1017 mL | 5.2541 mL | |
| 20 mM | 0.1576 mL | 0.7881 mL | 1.5762 mL | 3.9406 mL | |
| 25 mM | 0.1261 mL | 0.6305 mL | 1.2610 mL | 3.1525 mL | |
| 30 mM | 0.1051 mL | 0.5254 mL | 1.0508 mL | 2.6271 mL | |
| 40 mM | 0.0788 mL | 0.3941 mL | 0.7881 mL | 1.9703 mL | |
| 50 mM | 0.0630 mL | 0.3152 mL | 0.6305 mL | 1.5762 mL | |
| 60 mM | 0.0525 mL | 0.2627 mL | 0.5254 mL | 1.3135 mL | |
| 80 mM | 0.0394 mL | 0.1970 mL | 0.3941 mL | 0.9852 mL | |
| 100 mM | 0.0315 mL | 0.1576 mL | 0.3152 mL | 0.7881 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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