360570-M

Pyridine

ACS reagent, ≥99.0%

• 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: 329755266
• NACRES: NA.21

Properties

• grade: ACS reagent
• vapor density: 2.72 (vs air)
• vapor pressure: 10 mmHg ( 13.2 °C); 20 mmHg ( 25 °C)
• Assay: ≥99.0%
• autoignition temp.: 899 °F
• expl. lim.: 12.4 %
• impurities: Reducing substances, passes test; ≤0.002% NH₃; 0.1% water
• evapn. residue: ≤0.002%
• refractive index: n20/D 1.509 (lit.)
• bp: 115 °C (lit.)
• mp: −42 °C (lit.)
• solubility: water: soluble
• density: 0.978 g/mL at 25 °C (lit.)
• anion traces: chloride (Cl^-): ≤0.001%; sulfate (SO₄^2-): ≤0.001%
• cation traces: Cu: ≤5 ppm
• 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 (Pyr) is a nitrogen containing six membered heterocyclic compound commonly used as a base. It is a colorless liquid with a fishy odor. Pyridine moiety is present as a major component in a number of compounds like pyridine nucleotides, pyridine alkaloids, pyridine-based polymers and pyridine-containing macrocycles. It has wide application as a solvent, catalyst and as an intermediate for synthesis. IR, Raman and UV spectra of pyridine has been analyzed and the values obtained were used to calculate its thermodynamic properties. Photodegradation and bacterial degradation of Pyr has been studied.

Application

Pyridine may be used in the synthesis of the following:

• complexes with cobalt(II) halides
• pyridine-d₅, a deuterated form of pyridine
• ionic liquid matrices (ILMs)

Packaging

View returnable container options.

Other Notes

Important notice
This product will be phased out towards early 2019. There is a replacement product available : 360570

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H302 + H312 + H332,H315,H319
• Precautionary Statements: 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 Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): 62.6 °F - closed cup
• Flash Point(C): 17 °C - closed cup