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Merck

22620

Sigma-Aldrich

Chinin

suitable for fluorescence, anhydrous, ≥98.0% (dried material, NT)

Synonym(e):

6′-Methoxycinchonidin

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About This Item

Empirische Formel (Hill-System):
C20H24N2O2
CAS-Nummer:
Molekulargewicht:
324.42
Beilstein:
91867
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12171500
PubChem Substanz-ID:
NACRES:
NA.32

Qualitätsniveau

Assay

≥98.0% (dried material, NT)

Form

powder

Optische Aktivität

[α]20/D −126±5°, c = 1% in chloroform

Verunreinigungen

≤5% dihydroquinine (HPLC)

Verlust

≤1% loss on drying, 110 °C

mp (Schmelzpunkt)

173-175 °C (lit.)

Löslichkeit

H2O: soluble

Fluoreszenz

λex 347 nm; λem 448 nm in 0.5 M sulfuric acid

Eignung

suitable for fluorescence

SMILES String

COc1ccc2nccc([C@@H](O)[C@@H]3C[C@@H]4CCN3C[C@@H]4C=C)c2c1

InChI

1S/C20H24N2O2/c1-3-13-12-22-9-7-14(13)10-19(22)20(23)16-6-8-21-18-5-4-15(24-2)11-17(16)18/h3-6,8,11,13-14,19-20,23H,1,7,9-10,12H2,2H3/t13-,14-,19-,20+/m0/s1

InChIKey

LOUPRKONTZGTKE-WZBLMQSHSA-N

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Allgemeine Beschreibung

Quinine, also known as 6′-Methoxycinchonidine is a fluorescent reagent. The quantum yield of Quinine is 23% higher at 390 mµ excitation wavelength than at 313 mµ. The fluorescence polarization in the emission band of quinine in a rigid medium arises from two singlet states simultaneously. The emission spectra of quinine or 6-methoxyquinoline shifts towards the red zone when excited at 390 mµ.

Anwendung

Quinine was used in the following processes:

  • To study its in vitro antimalarial activity in combination with omeprazole.
  • To analyze its effect on viscosity and friction of saliva.
  • As a test agent to study its impact on the accumulation of the fluorescent P-glycoprotein (Pgp) substrates in P-glycoprotein overexpressing breast cancer cells.
  • To study its influence on the pyramidal cell intrinsic properties, extracellular potassium transients, and epileptiform activity in vitro.
  • As a reference compound to identify alkaloids by phytochemical screening of Deianira erubescens, Strychnos pseudoquina and Remijia ferruginea plants.

Biochem./physiol. Wirkung

blockiert Kaliumkanäle

Piktogramme

Exclamation mark

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Acute Tox. 4 Oral - Skin Sens. 1

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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Przemysław J Boratyński
Molecular diversity, 19(2), 385-422 (2015-01-15)
Nature is full of dimeric alkaloids of various types from many plant families, some of them with interesting biological properties. However, dimeric Cinchona alkaloids were not isolated from any species but were products of designed partial chemical synthesis. Although the
A.A. Smaardijk et al.
The Journal of Organic Chemistry, 52, 135-135 (1987)
The role of friction in perceived oral texture.
Rene A. de Wijk , Jon F. Prinz.
Food Quality and Preference, 16, 121-129 (2005)
T Skinner-Adams et al.
Antimicrobial agents and chemotherapy, 43(5), 1304-1306 (1999-05-01)
Previous studies have shown that the proton pump inhibitor omeprazole has antimalarial activity in vitro. The interactions of omeprazole with commonly used antimalarial drugs were assessed in vitro. Omeprazole and quinine combinations were synergistic; however, chloroquine and omeprazole combinations were
M Bikson et al.
Neuroscience, 115(1), 251-261 (2002-10-29)
The effect of quinine on pyramidal cell intrinsic properties, extracellular potassium transients, and epileptiform activity was studied in vitro using the rat hippocampal slice preparation. Quinine enhanced excitatory post-synaptic potentials and decreased fast- and slow-inhibitory post-synaptic potentials. Quinine reduced the

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