Ipratropium bromide hydrate

CAS: 66985-17-9 F: C20H32BrNO4 W: 430.38

Ipratropium bromide (Sch 1000) hydrate is a muscarinic receptor antagonist, with IC50s of 2.9 nM, 2 nM, and 1.7 nM for M

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Bioactivity	Ipratropium bromide (Sch 1000) hydrate is a muscarinic receptor antagonist, with IC50s of 2.9 nM, 2 nM, and 1.7 nM for M1, M2, and M3 receptors, respectively. Ipratropium bromide hydrate relaxes smooth muscle, can be used in the research for COPD (chronic obstructive pulmonary disease) and asthma[1][2][3][4][5].
Invitro	Ipratropium bromide hydrate (1 nM, 10 nM, 100 nM; 15 min) exerts its toxic effects via disruption of mitochondrial membrane potential[1].Ipratropium bromide hydrate (1 nM-1 μM; 4 h) increases infarct size in isolated perfused heart ischaemia/reperfusion experiments with a dose-responsive manner (EC50=22.7 nM)[1].Ipratropium bromide hydrate (0.001 nM-0.1 mM; 2 h) inhibits adult rat cardiac myocyte growth after 4 h hypoxia treatment[1]. Cell Viability Assay[1] Cell Line:
In Vivo	Ipratropium bromide hydrate (1.0 μg/kg; i.v.; single dose) enhances vagal nerve stimulation induing bronchoconstriction[2].Ipratropium bromide hydrate (0.04 mg/20 mL and 0.20 mg/20 mL; inhalation for 30 min, rate=30 mL/30 min) can protect the lungs against the cadmium-induced acute neutrophilic inflammation by reducing the parenchyma inflammatory infiltration of neutrophils[4]. Animal Model:
Name	Ipratropium bromide hydrate
CAS	66985-17-9
Formula	C20H32BrNO4
Molar Mass	430.38
Appearance	Solid
Transport	Room temperature in continental US; may vary elsewhere.
Storage	4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)
Reference	[1]. Fryer AD, et al. Maclagan, Ipratropium bromide potentiates bronchoconstriction induced by vagal nerve stimulation in the guinea-pig. Eur J Pharmacol, 1987. 139(2): p. 187-91. [2]. Harvey, et al. Maddock, Ipratropium Bromide-Mediated Myocardial Injury in In Vitro Models of Myocardial Ischaemia/Reperfusion. Toxicol Sci, 2014. [3]. Maria Prat, et al. Discovery of novel quaternary ammonium derivatives of (3R)-quinuclidinyl amides as potent and long acting muscarinic antagonists. Bioorg Med Chem Lett. 2015 Apr 15;25(8):1736-1741. [4]. Wenhui Zhang, et al. Anti-inflammatory effects of formoterol and ipratropium bromide against acute cadmium-induced pulmonary inflammation in rats. Eur J Pharmacol. 2010 Feb 25;628(1-3):171-8. [5]. Venkatasamy R, et al. Novel relaxant effects of RPL554 on guinea pig tracheal smooth muscle contractility. Br J Pharmacol. 2016 Aug;173(15):2335-51.

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