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Merck
CN

P57506

Pyridine

ReagentPlus®, ≥99%

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
329820233
EC Number:
203-809-9
Beilstein/REAXYS Number:
103233
MDL number:
MFCD00011732
Assay:
≥99%
Bp:
115 °C (lit.)
Vapor pressure:
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

Key Documents

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Product Name

Pyridine, ReagentPlus®, ≥99%

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

InChI

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

SMILES string

C1=CN=CC=C1

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

899 °F

expl. lim.

12.4 %

dilution

(for general lab use)

impurities

≤0.1% water (Karl Fischer)

refractive index

n20/D 1.509 (lit.)

pH

8.5 (25 °C, 15.82 g/L)

bp

115 °C (lit.)

mp

−42 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Pyridine can be used as a solvent:    
  • To synthesize glycophospholipids and phosphate diesters or phosphonate monoesters in the presence of trichloroacetonitrile as an activating reagent.      
  • In Knoevenagel condensation reactions.      
  • In the TEMPO-mediated radical polymerization of 3-vinylpyridine.

General description

Pyridine (Pyr) is a nitrogen-containing six-membered heterocyclic compound that is commonly used as a solvent in organic synthesis. It also has wide applications as a base, catalyst, and intermediate for synthesis.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

68.0 °F - closed cup

flash_point_c

20 °C - closed cup

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBT4878
SHBT3664
SDBB5811
SHBT1198
SHBT0762

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Total syntheses of complanadines A and B.
Le Zhao et al.
Angewandte Chemie (International ed. in English), 52(6), 1722-1725 (2013-01-03)
Nathalie Ségaud et al.
Inorganic chemistry, 52(2), 691-700 (2013-01-11)
We report the synthesis, characterization, and solution chemistry of a series of new Fe(II) complexes based on the tetradentate ligand N-methyl-N,N'-bis(2-pyridyl-methyl)-1,2-diaminoethane or the pentadentate ones N,N',N'-tris(2-pyridyl-methyl)-1,2-diaminoethane and N,N',N'-tris(2-pyridyl-methyl)-1,3-diaminopropane, modified by propynyl or methoxyphenyltriazolyl groups on the amino functions. Six of
Bobby Happ et al.
Chemical Society reviews, 41(6), 2222-2255 (2011-11-15)
Pyridine-based ligands, such as 2,2'-bipyridine and 1,10-phenanthroline, have gained much interest in the fields of supramolecular chemistry as well as materials science. The appealing optoelectronic properties of their complexes with heavy d(6) transition metal ions, such as Ru(ii), Os(II), Re(I)
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
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
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