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Methacholine bromide
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Catalog No. T60332Cas No. 333-31-3
Methacholine bromide (Acetyl-β-methylcholine bromide) is a potent muscarinic-3 (M3) agonist that specifically acts on acetylcholine receptors located on smooth muscle, inducing bronchoconstriction and narrowing of the airways. Its high sensitivity in identifying bronchial hyperresponsiveness (BHR), a hallmark of asthma, makes it useful in the assessment of airway hyperresponsiveness (AHR) as a diagnostic tool for individuals exhibiting asthma-like symptoms with normal resting expiratory flow rates [1] [2] [3] [4].
Methacholine bromide
😃Good
Catalog No. T60332Cas No. 333-31-3
Methacholine bromide (Acetyl-β-methylcholine bromide) is a potent muscarinic-3 (M3) agonist that specifically acts on acetylcholine receptors located on smooth muscle, inducing bronchoconstriction and narrowing of the airways. Its high sensitivity in identifying bronchial hyperresponsiveness (BHR), a hallmark of asthma, makes it useful in the assessment of airway hyperresponsiveness (AHR) as a diagnostic tool for individuals exhibiting asthma-like symptoms with normal resting expiratory flow rates [1] [2] [3] [4].
| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 25 mg | $2,140 | 6-8 weeks | |
| 50 mg | $2,785 | 6-8 weeks | |
| 100 mg | $3,520 | 6-8 weeks |
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Product Introduction
Bioactivity
Chemical Properties
| Description | Methacholine bromide (Acetyl-β-methylcholine bromide) is a potent muscarinic-3 (M3) agonist that specifically acts on acetylcholine receptors located on smooth muscle, inducing bronchoconstriction and narrowing of the airways. Its high sensitivity in identifying bronchial hyperresponsiveness (BHR), a hallmark of asthma, makes it useful in the assessment of airway hyperresponsiveness (AHR) as a diagnostic tool for individuals exhibiting asthma-like symptoms with normal resting expiratory flow rates [1] [2] [3] [4]. |
| In vivo | Methacholine bromide (0.5 μg/kg plus 5 μg/kg/min for 30 min) induces bronchoconstriction in dogs [4]. In mice, methacholine bromide (0.5 mg/kg; i.v.)-induced bronchoconstriction was dose-dependently inhibited by bradykinin (4-40 μg/kg; i.v.) [5]. Animal model: 9-week female BALB/c mice [6]; Dosage: 0.03, 0.1, 0.3, 1 mg/kg; Administration: i.v.; Result: Induced severe bronchoconstriction. |
| Molecular Weight | 240.141 |
| Formula | C8H18BrNO2 |
| Cas No. | 333-31-3 |
Storage & Solubility Information
| Storage | Shipping with blue ice. |
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Please enter your animal experiment information in the following box and click Calculate to obtain the mother liquor preparation method and in vivo formula preparation method:
For example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL . A total of 10 animals were administered, and the formula you used is 5% 
DMSO+30% PEG300+5% Tween 80+60% ddH2O. So your working solution concentration is 2 mg/mL。Mother liquor preparation method: 2 mg of drug dissolved in 50 μL DMSO (mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.
(mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.Preparation method for in vivo formula: Take 50 μL DMSO main solution, add 300 μLPEG300 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLddH2O mix well and clarify
main solution, add 300 μLPEG300 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLddH2O mix well and clarifyFor Reference Only. Please develop an appropriate dissolution method based on your laboratory animals and route of administration.
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