Merck
All Photos(1)

02486

Supelco

Pyridine

analytical standard

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
Beilstein:
103233
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

vapor density

2.72 (vs air)

vapor pressure

10 mmHg ( 13.2 °C)
20 mmHg ( 25 °C)

Assay

≥99.9% (GC)

autoignition temp.

899 °F

shelf life

limited shelf life, expiry date on the label

expl. lim.

12.4 %

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

refractive index

n20/D 1.509 (lit.)
n20/D 1.510

bp

115 °C (lit.)

mp

−42 °C (lit.)

density

0.978 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

format

neat

SMILES string

C1=CN=CC=C1

InChI

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

InChI key

JUJWROOIHBZHMG-UHFFFAOYSA-N

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1 of 4

This Item
360570494410P57506
Pyridine analytical standard

Supelco

02486

Pyridine

Pyridine ACS reagent, ≥99.0%

Sigma-Aldrich

360570

Pyridine

Pyridine biotech. grade, ≥99.9%

Sigma-Aldrich

494410

Pyridine

Pyridine ReagentPlus®, ≥99%

Sigma-Aldrich

P57506

Pyridine

assay

≥99.9% (GC)

assay

≥99.0%

assay

≥99.9%

assay

≥99%

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

-

application(s)

cleaning products
cosmetics
environmental
flavors and fragrances
food and beverages
personal care

application(s)

-

application(s)

-

application(s)

-

format

neat

format

-

format

-

format

-

General description

Pyridine is a heterocyclic compound and a toxic chemical, which is widely used as a solvent and intermediate in the production of dyes, rubber products, paints, textile water repellents, agricultural chemicals, chemical laboratories, manufacturing of piperidine, etc. It plays an important role in the sensory properties of cigarette smoke and exists as a volatile component in certain food products.

Application

Pyridine may be used as an analytical reference standard for the quantification of the analyte in cigarette smoke using reversed-phase liquid chromatography/electrospray ionization tandem mass spectrometry (RP-HPLC–ESI-MS/MS).

Pictograms

FlameExclamation mark

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)

68.0 °F - closed cup

Flash Point(C)

20 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Determination of pyridine, 2-picoline, 4-picoline and quinoline from mainstream cigarette smoke by solid-phase extraction liquid chromatography/electrospray ionization tandem mass spectrometry
Saha S, et al.
Journal of Chromatography A, 1217(3), 307-311 (2010)
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
Jerri M Rook et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 40(3), 755-765 (2014-09-23)
Allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGlu5) have exciting potential as therapeutic agents for multiple brain disorders. Translational studies with mGlu5 modulators have relied on mGlu5 allosteric site positron emission tomography (PET) radioligands to assess receptor occupancy
Yuya Kodama et al.
Journal of medicinal chemistry, 56(22), 9342-9350 (2013-11-01)
In this study, we developed an assignment-free approach for rapid identification of ligand-binding sites in target proteins by using NMR. With a sophisticated cell-free stable isotope-labeling procedure that introduces (15)N- or (13)C-labels to specific atoms of target proteins, this approach

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