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243086

Sigma-Aldrich

Pyridine hydrochloride

98%

Synonym(s):

Pyridinium chloride

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About This Item

Empirical Formula (Hill Notation):
C5H5N · HCl
CAS Number:
628-13-7
Molecular Weight:
115.56
Beilstein/REAXYS Number:
3615340
EC Number:
211-027-4
MDL number:
MFCD00012802
UNSPSC Code:
12352100
eCl@ss:
39151701
PubChem Substance ID:
24854598
NACRES:
NA.22

assay

98%

bp

222-224 °C (lit.)

mp

145-147 °C (lit.)

solubility

ethanol: soluble 50 mg/mL, clear, colorless to light yellow

SMILES string

Cl[H].c1ccncc1

InChI

1S/C5H5N.ClH/c1-2-4-6-5-3-1;/h1-5H;1H

InChI key

AOJFQRQNPXYVLM-UHFFFAOYSA-N

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General description

Pyridine hydrochloride is an acidic type demethylating agent used as a catalyst in deprotection of aromatic methyl ethers.

Application

Pyridine hydrochloride (pyridine hydrochloride) was used in the demethylation of 4,5-dimethyl-7-methoxy-1-tetralone.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Microwave Mediated Dearylation of 2-Aryloxy-5-Nitropyridine
Kher S et al.
Research Journal of Chemical Sciences, 2231, 606X-606X (2011)
Demethylation of methyl aryl ethers using pyridine hydrochloride in solvent-free conditions under microwave irradiation.
Kulkarni PP, et al.
J. Chem. Res. Synop., 6, 394-395 (1999)
Tatyana N Sevastyanova et al.
Molecular pharmacology, 86(5), 492-504 (2014-08-13)
Metabotropic glutamate receptors (mGluRs) function as dimers. Recent work suggests that mGluR1 and mGluR5 may physically interact, but the nature and functional consequences of this relationship have not been addressed. In this study, the functional and pharmacological consequences of this
Wen Zhou et al.
Inorganic chemistry, 52(5), 2271-2273 (2013-02-20)
The reaction of 2,2'-bipyridine (bpy) with monomeric chromium(II) precursors was used to prepare the S = 1 complexes Cr(tBu-acac)2(bpy) (1) and (η(5)-Cp)(η(1)-Cp)Cr(bpy) (3), as well as the S = 2 compound Cr[N(SiMe3)2]2(bpy) (4). The crystallographically determined bond lengths indicate that
Vandana Bhalla et al.
Dalton transactions (Cambridge, England : 2003), 42(13), 4450-4455 (2013-01-26)
Nanoaggregates of a supramolecular ensemble of triphenylene derivative 3 and Cu(2+) ions exhibit 'turn-on' response towards CN(-) ions in an aqueous medium and can detect the trace amount of inorganic cyanide ions (NaCN) in tap water and blood serum milieu.
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