W296600

Sigma-Aldrich

Pyridine

≥99%

Empirical Formula (Hill Notation):
C5H5N
CAS Number:
Molecular Weight:
79.10
FEMA Number:
2966
Beilstein/REAXYS Number:
103233
EC Number:
Council of Europe no.:
604
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

biological source

synthetic

grade

Halal
Kosher

Agency/Method

follows IFRA guidelines

reg. compliance

EU Regulation 1223/2009

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 %

packaging

composite drum of 25 kg
glass bottle of 1 kg
steel drum of 10 kg

impurities

≤0.50% (water)

color

colorless

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.)

Documentation

see Safety & Documentation for available documents

Featured Industry

Flavors and Fragrances

Organoleptic

fishy; sour

food allergen

no known allergens

fragrance allergen

no known allergens

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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Related Categories

Packaging

10 kg in steel drum
25 kg in composite drum
1 kg in glass bottle

Other Notes

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Pictograms

FlameExclamation mark

Signal Word

Danger

hazcat

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 Germany

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

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...
Maria Milina et al.
Angewandte Chemie (International ed. in English), 54(5), 1591-1594 (2014-11-08)
Without techniques sensitive to complex pore architectures, synthetic efforts to enhance molecular transport in zeolite and other porous materials through hierarchical structuring lack descriptors for their rational design. The power of positron annihilation lifetime spectroscopy (PALS) to characterize the pore...
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...
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...

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