16037

Pyridine

≥99.5% (GC)

• Empirical Formula (Hill Notation): C₅H₅N
• CAS Number: 110-86-1
• Molecular Weight: 79.10
• Beilstein/REAXYS Number: 103233
• EC Number: 203-809-9
• MDL number: MFCD00011732
• UNSPSC Code: 12352005
• PubChem Substance ID: 329751044
• form: liquid
• assay: ≥99.5% (GC)

Properties

• vapor density: 2.72 (vs air)
• vapor pressure: 10 mmHg ( 13.2 °C); 20 mmHg ( 25 °C)
• assay: ≥99.5% (GC)
• form: liquid
• autoignition temp.: 899 °F
• expl. lim.: 12.4 %
• impurities: ≤0.01% non-volatile matter; ≤0.1% water (Karl Fischer)
• 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.)
• 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 a 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 synthesis of vanadium oxide nanoparticles and iron benzenedicarboxylates, Fe(OH)(BDC)(py)_0.85 (BDC = 1,4-benzenedicarboxylate). It may be employed as a catalyst in the Knoevenagel condensation reaction.

Safety Information

• 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
• wgk_germany: WGK 2
• flash_point_f: 68.0 °F - closed cup
• flash_point_c: 20 °C - closed cup