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Key Documents

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Safety Information

P57506-M

Sigma-Aldrich

Pyridine

reagent grade, ≥99%

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About This Item

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
110-86-1
Molecular Weight:
79.10
Beilstein:
103233
EC Number:
203-809-9
MDL number:
MFCD00011732
UNSPSC Code:
12352005
PubChem Substance ID:
329820233
NACRES:
NA.21
grade:
reagent grade
application(s):
peptide synthesis
bp:
115 °C (lit.)
vapor pressure:
10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)
Pricing and availability is not currently available.

grade

reagent grade

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

Assay

≥99%

form

liquid

autoignition temp.

899 °F

expl. lim.

12.4 %

dilution

(for analytical testing)

impurities

≤0.1% water (Karl Fischer)

refractive index

n20/D 1.509 (lit.)

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General description

Pyridine is a basic N-heterocyclic compound. It acts as a nitrogen donor ligand and forms many metal-pyridine complexes. It has wide applications as a solvent, catalyst, and intermediate for synthesis.[1]

Application


  • Ligand-Modulated Nuclearity and Geometry in Nickel(II) Hydrazone Complexes: From Mononuclear Complexes to Acetato- and/or Phenoxido-Bridged Clusters.: Research on the use of pyridine and its derivatives to control the nuclearity and coordination geometry in nickel(II) complexes, which is crucial for designing metal-organic frameworks and catalytic sites (Vrdoljak et al., 2023).

  • Non-palindromic (C^C^D) gold(III) pincer complexes are not accessible by intramolecular oxidative addition of biphenylenes - an experimental and quantum chemical study.: A study examining the limitations of pyridine-containing ligands in stabilizing reactive gold(III) complexes, providing insights into the electronic properties and stability challenges (Feuerstein & Breher, 2021).


Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

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 Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

62.6 °F - closed cup

Flash Point(C)

17 °C - closed cup

Regulatory Information

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    Certificates of Analysis (COA)

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    SDBB3541
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    STBK9359
    STBJ8691

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    Biotreatment of waste gas containing pyridine in a biofilter
    Pandey RA, et al.},
    Bioresource Technology, 98(12), 2258-2267 (2017)

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