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270970

Pyridine

Name: Pyridine
Brand: SIAL

anhydrous, 99.8%

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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:

57648214

EC Number:

203-809-9

Beilstein/REAXYS Number:

103233

MDL number:

MFCD00011732

Assay:

99.8%

Grade:

anhydrous

Bp:

115 °C (lit.)

Vapor pressure:

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

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Properties

grade

anhydrous

Quality Level

200

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C), 20 mmHg ( 25 °C)

assay

99.8%

form

liquid

autoignition temp.

899 °F

expl. lim.

12.4 %

impurities

<0.003% water, <0.005% water (100 mL pkg)

evapn. residue

<0.0005%

color

colorless

refractive index

n20/D 1.509 (lit.)

pH

~8.81 (20 °C)

bp

115 °C (lit.)

mp

−42 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

SMILES string

C1=CN=CC=C1

InChI

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

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

Description

General description

Pyridine is a basic N-heterocyclic compound. It acts as nitrogen donor ligand and forms many metal-pyridine complexes. Its complexes having tetrahedral and octahedral geometries can be differentiated by infra-red spectral investigations.

Application

Pyridine (py) may be used in the preparation of vanadium oxide nanoparticles and iron benzenedicarboxylates, Fe(OH)(BDC)(py)_0.85 (BDC = 1,4-benzenedicarboxylate, py = pyridine). It may be employed as catalyst in Knoevenagel condensation reaction.

Pyridine may be used as a base for the conversion of:

Alkyltrichlorosilanes to trimethoxyalkylsilanes, which are used as precursors for preparing alkylsilicates.
1-Indanone to 1-indanone oxime, which can undergo reductive ring-expansion to form tetrahydroquinoline.

It may also be used to catalyze the borylation reaction of haloarenes to form arylboronates without using transition metal catalysts.

Packaging

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pictograms

GHS02,GHS07

signalword

Danger

hcodes

H225,H302 + H312 + H332,H315,H319

pcodes

P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338

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

flash_point_f

68.0 °F - closed cup

flash_point_c

20 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品

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Articles

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Effective in key synthesis reactions like Knoevenagel condensation, thalidomide synthesis, and Suzuki coupling for sustainable chemical transformations.

A process for producing lignin and volatile compounds from hydrolysis liquor.

Tooran Khazraie et al.

Biotechnology for biofuels, 10, 47-47 (2017-03-03)

Hot water hydrolysis process is commercially applied for treating wood chips prior to pulping or wood pellet production, while it produces hydrolysis liquor as a by-product. Since the hydrolysis liquor is dilute, the production of value-added materials from it would

Pyridine-catalyzed radical borylation of aryl halides

Zhang L & Jiao L

Journal of the American Chemical Society, 139(2), 607-610 (2017)

DIBALH-Mediated Reductive Ring-Expansion Reaction of Cyclic Ketoxime

Taku I, et al

Organic Syntheses, 93, 1-1 (2016)

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Global Trade Item Number

SKU	GTIN
270970-4X2L	04061826143476
270970-6X1L	04061826143483
270970-PZ	04061823900676
270970-12X100ML	04061837532009
270970-100ML	04061837531996
270970-1L	04061826143445
270970-200L	04061838161345
270970-250ML	04061837532016
270970-2L	04061826143452
270970-4X25ML	04061826143469