Quinidine (15% dihydroquinidine)

Quinidine (15% dihydroquinidine) 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, and can induce apoptosis. Quinidine can be used for malaria research[1][2][3][4].

Product Specifications

CAS Number

[56-54-2]

UNSPSC

12352005

Hazard Statement

H301, H317, H402

Target

Apoptosis; Cytochrome P450; Parasite; Potassium Channel

Type

Natural Products

Related Pathways

Anti-infection; Apoptosis; Membrane Transporter/Ion Channel; Metabolic Enzyme/Protease

Applications

COVID-19-immunoregulation

Field of Research

Cancer; Infection; Cardiovascular Disease

Assay Protocol

https://www.medchemexpress.com/Quinidine.html

Purity

99.80

Solubility

DMSO : ≥ 50 mg/mL|Ethanol : 14.29 mg/mL (ultrasonic; warming; heat to 60°C) |H2O : < 0.1 mg/mL

Smiles

C=C[C@H]1C[N@](CC[C@H]1C2)[C@@]2([H])[C@@H](O)C3=CC=NC4=CC=C(OC)C=C34

Molecular Formula

C20H24N2O2

Molecular Weight

324.42

Precautions

H301, H317, H402

References & Citations

[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]Sang-Yun Lee, et al. Hydrocinchonine, cinchonine, and quinidine potentiate paclitaxel-induced cytotoxicity and apoptosis via multidrug resistance reversal in MES-SA/DX5 uterine sarcoma cells. Environ Toxicol. 2011 Aug;26 (4) :424-31.|[4]Hassan Jamali, et al. Effect of dextromethorphan/quinidine on pentylenetetrazole- induced clonic and tonic seizure thresholds in mice. Neurosci Lett. 2020 Jun 11;729:134988.|[5]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.