Oxitropium Bromide
Oxitropium bromide is an mAChR antagonist used as an anticholinergic bronchodilator agent for the treatment of asthma and chronic obstructive pulmonary disease.
For research use only. We do not sell to patients.
- CAS No.: 30286-75-0
- Formula: C19H26BrNO4
- Molecular Weight:412.32
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
mAChR[1]
Oxitropium bromide is a muscarinic antagonist which blocks musucarinic acetylcholine receptors (mAChR). Incubation with oxitropium bromide of untreated diaphragm muscle and diaphragm muscle injected with endotoxin does not increase the force-frequency curves dose-dependently in vitro; however, it causes both types of muscle to be fatigue resistant[1].
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.
Chemical Information
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CAS No. 30286-75-0
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Molecular Weight 412.32
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Formula C19H26BrNO4
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SMILES
CC[N@@+]1([C@H]2[C@@H](O3)[C@@H]3[C@@H]1C[C@H](OC([C@@H](C4=CC=CC=C4)CO)=O)C2)C.[Br-]
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Protocol
Mice: In the oxitropium bromide inhalation group, animals are given 2 puffs of inhalation from a oxitropium bromide MDI (metered dose inhaler) via a 75-mL spacer, and then diaphragm muscles are dissected and measured as to contractility immediately, 1 hour, 2 hours and 4 hours later (n=5 animals each). An animal is placed in a centrifugal tube (inner diameter=30 mm) with a round hole (diameter=10 mm) in the bottom, its nose and mouth being exposed through the hole to breath. An oxitropium bromide MDI (metered dose inhaler) releases 2 puffs into a spacer attached to the tube. Aerosols of oxitropium bromide are inhaled for about 10 seconds, while the animal is breathing spontaneously through the hole of the tube[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
References
[1]. Shindoh C, et al. Effects of inhalation or incubation of oxitropium bromide on diaphragm muscle contractility in mice. Allergol Int. 2011 Sep;60(3):365-72. [Content Brief]
[2]. Kohno SW, et al. Effect of oxitropium bromide (Ba253) on increased airway resistance induced by various agonists and antigen in the guinea pig. Jpn J Pharmacol. 1989 Aug;50(4):455-66. [Content Brief]
[3]. Takeyama K, et al. Effect of oxitropium bromide on histamine-induced airway goblet cell secretion. Am J Respir Crit Care Med. 1996 Jul;154(1):231-6. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)