145920

Sigma-Aldrich

Quinine monohydrochloride dihydrate

90%

Synonym(s):
Quinine hydrochloride dihydrate
Empirical Formula (Hill Notation):
C20H24N2O2 · HCl · 2H2O
CAS Number:
Molecular Weight:
396.91
Beilstein/REAXYS Number:
6112655
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

90%

optical activity

[α]20/D −144°, c = 1 in H2O

mp

115-116 °C (dec.) (lit.)

SMILES string

Cl[H].[H]O[H].[H]O[H].[H][C@@]12CCN(C[C@@H]1C=C)[C@@]([H])(C2)[C@H](O)c3ccnc4ccc(OC)cc34

InChI

1S/C20H24N2O2.ClH.2H2O/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;1H;2*1H2/t13-,14-,19-,20+;;;/m0.../s1

InChI key

MPQKYZPYCSTMEI-FLZPLBAKSA-N

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General description

Quinine monohydrochloride dihydrate is commonly used as a standard for bitterness in sensory evaluation experiments of food samples.

Packaging

10, 50 g in poly bottle

Other Notes

Remainder hydroquinine hydrochloride dihydrate

Pictograms

Exclamation markHealth hazard

Signal Word

Danger

Hazard Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Temporary modification of salivary protein profile and individual responses to repeated phenolic astringent stimuli.
Dinnella C, et al.
Chemical Senses, 35(1), 75-85 (2010)
Prediction of grape polyphenol astringency by means of a fluorimetric micro-plate assay
Fia G, et al.
Food Chemistry, 113(1), 325-330 (2009)
Benjamin Troutwine et al.
Alcoholism, clinical and experimental research, 43(12), 2480-2493 (2019-10-09)
N-methyl-D-aspartate (NMDA) receptors regulate synaptic plasticity and modulate a wide variety of behaviors. Mammalian NMDA receptors are inhibited by ethanol (EtOH) even at low concentrations. In mice, the F639A mutation in transmembrane domain (TMD) 3 of the NR1 subunit reduces...
Hao Jin et al.
Cell, 184(1), 257-271 (2021-01-09)
Hardwired circuits encoding innate responses have emerged as an essential feature of the mammalian brain. Sweet and bitter evoke opposing predetermined behaviors. Sweet drives appetitive responses and consumption of energy-rich food sources, whereas bitter prevents ingestion of toxic chemicals. Here...

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