All Photos(4)

243086

Sigma-Aldrich

Pyridine hydrochloride

98%

Synonym(s):
Pyridinium chloride
Empirical Formula (Hill Notation):
C5H5N · HCl
CAS Number:
Molecular Weight:
115.56
Beilstein:
3615340
EC Number:
MDL number:
eCl@ss:
39151701
PubChem Substance ID:
NACRES:
NA.22

Quality Level

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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Application

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

Packaging

5 g in glass bottle
100, 500 g in poly bottle

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Certificate of Origin

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
Jipan Yu et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(13), 4271-4277 (2013-02-13)
Efficient copper-catalyzed aerobic oxidative C-H and C-C functionalization of 1-[2-(arylamino)aryl]ethanones leading to acridones has been developed. The procedure involves cleavage of aromatic C-H and acetyl C-C bonds with intramolecular formation of a diarylketone bond. The protocol uses inexpensive Cu(O2CCF3)2 as
Ye Wei et al.
Journal of the American Chemical Society, 135(10), 3756-3759 (2013-02-27)
We describe here a [3+3]-type condensation reaction of O-acetyl ketoximes and α,β-unsaturated aldehydes that is synergistically catalyzed by a copper(I) salt and a secondary ammonium salt (or amine). This redox-neutral reaction allows modular synthesis of a variety of substituted pyridines
Prasanta Das et al.
The Journal of chemical physics, 138(5), 054307-054307 (2013-02-15)
With infrared absorption spectra we investigated the reaction between Cl atom and pyridine (C(5)H(5)N) in a para-hydrogen (p-H(2)) matrix. Pyridine and Cl(2) were co-deposited with p-H(2) at 3.2 K; a planar C(5)H(5)N-Cl(2) complex was identified from the observed infrared spectrum

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