Quinine hydrochloride dihydrate

tested according to Ph. Eur.

Chinini hydrochloridum, (8α, 9R)-6′-Methoxycinchonan-9-ol monohydrochloride dihydrate
Empirical Formula (Hill Notation):
C20H24N2O2 · HCl · 2H2O
CAS Number:
Molecular Weight:
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EC Number:
MDL number:
PubChem Substance ID:

Quality Level


tested according to Ph. Eur.


water: soluble 0.25 mg in 5 ml

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Pharmaceutical (small molecule)

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Quinine hydrochloride dehydrate has been used for fluorescent in situ detection of quinine in cinchona bark using UV resonance raman spectroscopy. It has also been used as a actinometric system to measure the light-induced changes in ruthenium anticancer agent, NAMI-A.

Biochem/physiol Actions

Quinine is a very effective anti-malarial treatment but is considered toxic for routine treatment due to the development of drug resistance in the malarial parasites. It acts as blood schizonticide.Quinine reportedly blocks the membrane conductance of potassium in enteric neurons.


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Hazard Statements


Acute Tox. 4 Oral - Resp. Sens. 1 - Skin Sens. 1


11 - Combustible Solids

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

D A Warrell
Journal of the Royal Society of Medicine, 82 Suppl 17, 44-50 (1989-01-01)
In the treatment of severe Plasmodium falciparum infection antimalarial drugs should, ideally, be given by controlled rate intravenous infusion until the patient is able to swallow tablets. In cases where infection has been acquired in a chloroquine resistant area, and...
E Cherubini et al.
British journal of pharmacology, 83(1), 3-5 (1984-09-01)
Quinine (100 microM) abolished the slow calcium-dependent afterhyperpolarization which occurs after an action potential in some neurones of the guinea-pig myenteric and submucous plexus. This occurred without any effect on the amplitude or time course of the action potential itself...
Is alkylation the main mechanism of action of the antimalarial drug artemisinin?.
Robert A and Meunier B
Chemical Society Reviews, 273-274 (1998)
Torsten Frosch et al.
The journal of physical chemistry. B, 111(16), 4171-4177 (2007-03-31)
Deep UV resonance Raman micro-spectroscopy (lambda(exc) = 244 nm) was applied for a highly sensitive, selective, and gentle localization of the antimalarial quinine in situ in cinchona bark. The high potential of the method was demonstrated by the detection of...
Marjan Bouma et al.
Journal of pharmaceutical and biomedical analysis, 30(4), 1287-1296 (2002-11-01)
NAMI-A is a novel ruthenium complex with selective activity against metastases currently in Phase I clinical trials in The Netherlands. The photostability of this new agent in solid state and in solution has been investigated utilizing a stability-indicating reversed-phase high...

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