File:Pyridine-2D-full.svg · Wikimedia Commons · See Wikimedia Commons
Pyridine is a colorless liquid chemical compound similar to benzene but with a nitrogen atom in its ring structure, known for its flammable nature and distinctive fishy smell. It's an important ingredient in thousands of commercial products including pesticides, medicines, and vitamins, with about 20,000 tons produced globally each year.
AI-generated from the Wikipedia summary — may contain errors.
Chemical data
- Formula
- C5H5N
- Molecular weight
- 79.1 g/mol
- IUPAC name
- pyridine
- SMILES
- C1=CC=NC=C1
- InChIKey
- JUJWROOIHBZHMG-UHFFFAOYSA-N
- XLogP
- 0.7
- Polar surface area
- 12.9 Ų
- H-bond donors
- 0
- H-bond acceptors
- 1
- Formal charge
- 0
via PubChem
Drug data · ChEMBL
- Molecule type
- Small molecule
via ChEMBL · EBI
Wikidata facts
- Subclass of
- pyridine alkaloid
- Has part
- hydrogen
- Mass
- 79.042
- Image
- Pyridine sample.jpg
Show 21 more facts
- MCN code
- 2933.31.10
- Commons category
- Pyridine
- chemical formula
- C₅H₅N
- upper flammable limit
- 12.4
- flash point
- 68
- lower flammable limit
- 1.8
- NIOSH Pocket Guide ID
- 0541
- density
- 0.98
- immediately dangerous to life or health
- 3240
- melting point
- -41.66
- boiling point
- 115.23
- vapor pressure
- 16
- ionization energy
- 9.25
- time-weighted average exposure limit
- 15
- canonical SMILES
- C1=CC=NC=C1
- described by source
- Encyclopædia Britannica 11th edition
- dynamic viscosity
- 0.94
- different from
- pyrimidine
- conjugate acid
- pyridinium
- subject has role
- carcinogen
- electric dipole moment
- 2.215
Sources (8)
via Wikidata · CC0
Article · Italiano
La piridina è un composto eterociclico aromatico a sei termini, appartenente al gruppo delle azine; a temperatura ambiente si presenta come un liquido incolore dallo sgradevole odore caratteristico. La piridina si ottiene sia per sintesi a partire da acetaldeide e ammoniaca oltreché per distillazione del carbone.
Abstract from DBpedia / Wikipedia · CC BY-SA