Powder: -20°C for 3 years | In solvent: -80°C for 1 year
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 | Availability | Price/USD | Quantity |
---|---|---|---|
25 mg | 6-8 weeks | $ 2,140.00 | |
50 mg | 6-8 weeks | $ 2,785.00 | |
100 mg | 6-8 weeks | $ 3,520.00 |
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]. Methacholine bromide (0.5 mg/kg; i.v.) induces bronchoconstriction was inhibited in a dose-dependent manner by bradykinin (4-40 μg/kg; i.v.) in mouse [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 |
Powder: -20°C for 3 years | In solvent: -80°C for 1 year
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Methacholine bromide 333-31-3 inhibitor inhibit