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.
Molecular Formula: C5H5N
Molecular Weight: 79.1
Linear Structural Formula: C5H5N
MDL Number: MFCD00011732
Purity: >=99.0%
Melting Point: -42 C (lit.)
Density: 0.978 g/mL at 25 C (lit.)
Refractive Index: n20/D 1.509 (lit.)
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)
Anion Traces: sulfate (SO42-): ≤0.001%
Assay: ≥99.0%
Autoignition Temp.: 899°F
BP: 115°C(lit.)
Cation Traces: Cu: ≤5 ppm
Density: 0.978 g/mL at 25°C(lit.)
Evapn. Residue: ≤0.002%
Expl. Lim.: 12.4 %
Grade: ACS reagent
Impurities: 0.1% water
MP: −42°C(lit.)
Refractive Index: n20/D 1.509(lit.)
Vapor Density: 2.72 (vs air)
Vapor Pressure: 20 mmHg ( 25°C)