Quinine bisulfate

Modify Date: 2024-01-02 08:19:13

Quinine bisulfate Structure
Quinine bisulfate structure
Common Name Quinine bisulfate
CAS Number 549-56-4 Molecular Weight 746.91200
Density N/A Boiling Point 1136.7ºC at 760mmHg
Molecular Formula C40H50N4O8S Melting Point N/A
MSDS N/A Flash Point 641.2ºC

 Use of Quinine bisulfate


Quinidine is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM. Quinidine can be used for malaria research[1][2][3].

 Names

Name quinine sulfate
Synonym More Synonyms

 Quinine bisulfate Biological Activity

Description Quinidine is an antiarrhythmic agent. Quinidine is a potent, orally active, selective cytochrome P450db inhibitor. Quinidine is also a K+ channel blocker with an IC50 of 19.9 μM. Quinidine can be used for malaria research[1][2][3].
Related Catalog
In Vitro Quinidine sulfate is an anti-arrythmic drug which affects ionic currents in heart muscle and which has also been shown to be a potent blocker of several classes of K+ channel in a variety of cell types[1]. Bath application of quinidine sulfate causes a dose-dependent reduction of the peak amplitude of Ik. The Kd for blockade of Ik at 0 mV is estimated to be 41 μM[1]. Quinidine sulfate elicits a dose-dependent increase of the rate of the decay of Ik and this effect is enhanced by membrane depolarization. Quinidine also causes a 5 mV hyperpolarizing shift of the steady-state inactivation curve and increases the half-time for recovery from inactivation. Quinidine does not affect the onset of inactivation measured at -30 mV[1].
In Vivo Quinidine sulfate is rapidly absorbed, with peak plasma concentrations 60-90 min after an oral dose. Other salts (gluconate, polygalacturonate) are more slowly absorbed, with lower peak concentrations[2]. Quinidine sulfate is approximately 70-90 % bound to plasma proteins. It undergoes hepatic oxidative metabolism to form an N-oxide, a 3-hydroxy form, an O-demethyl form and 2'-quinidinone[2]. Quinidine sulfate inhibits metabolism of amphetamine in rats. Quinidine pretreatment results in a significant decrease in the excretion of p-hydroxyamphetamine at 24 and 48 h to 7.2 and 24.1% of the vehicle-control levels, respectively, accompanied by a significant increase in amphetamine excretion between 24 and 48 h to 542% of the control[3].
References

[1]. Kehl SJ, et al. Quinidine-induced inhibition of the fast transient outward K+ current in rat melanotrophs. Br J Pharmacol. 1991 Jul;103(3):1807-13.

[2]. Roden DM, et al. Class I antiarrhythmic agents: quinidine, procainamide and N-acetylprocainamide, disopyramide.

[3]. Moody DE, et al. Quinidine inhibits in vivo metabolism of amphetamine in rats: impact upon correlation between GC/MS and immunoassay findings in rat urine. J Anal Toxicol. 1990 Sep-Oct;14(5):311-7.

 Chemical & Physical Properties

Boiling Point 1136.7ºC at 760mmHg
Molecular Formula C40H50N4O8S
Molecular Weight 746.91200
Flash Point 641.2ºC
Exact Mass 746.33500
PSA 174.16000
LogP 6.65020

 Safety Information

RIDADR UN 1544
Packaging Group III
Hazard Class 6.1(b)

 Synonyms

EINECS 208-970-9
MFCD00078499
chinidinesulfate