Pyridine
Properties
- Molecular formula
- C5H5N
- Molar mass
- 79.10 g/mol
- Exact mass
- 79.0422 Da
- Density
- 0.9827 g/mL (at 20 °C)
- Melting point
- −41.6 °C
- Boiling point
- 115.2–115.3 °C
- pKa
- 5.23
- Flash point
- 20 °C (closed cup)
- Water solubility
- miscible
- logP
- 1.08Crippen estimate
- Polar surface area
- 12.9 Ų
- H-bond donors / acceptors
- 0 / 1
- Rotatable bonds
- 0
Hazards
Danger
- H225 Highly Flammable liquid and vaporFlammable liquids
- H302 Harmful if swallowedAcute toxicity, oral
- H312 Harmful in contact with skinAcute toxicity, dermal
- H332 Harmful if inhaledAcute toxicity, inhalation
Harmonised EU classification (CLP Annex VI), via PubChem.
Precautionary statements
P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P317, P321, P330, P362+P364, P370+P378, P403+P235, P501
Identifiers
CAS number
110-86-1SMILES
c1ccncc1InChIKey
JUJWROOIHBZHMG-UHFFFAOYSA-NInChI
InChI=1S/C5H5N/c1-2-4-6-5-3-1/h1-5HWeigh it out
Type any one amount. The others follow from the molar mass and density.
Names and synonyms
5 names
- Azabenzene
- Azine
- CP 32
- NSC 141574
- NSC 406123
Reactions
Work with Pyridine
Predict the NMR spectrum1H and 13C shifts with multiplicities
Make a solutionWhat to weigh for any molarity and volume
Check drug-likenessLipinski, Veber and lead-likeness
Boiling point under vacuumAt any pressure, from its normal boiling point
Isotope patternExact mass and the mass spectrum pattern
Similar compounds
Pyridinium hydrobromide18820-82-175 % similar
Hydrofluoric acid pyridine complex32001-55-175 % similar
Poly(pyridine fluoride)62778-11-475 % similar
Pyridinium chloride628-13-775 % similar
Sulfur trioxide pyridine complex26412-87-360 % similar
Cornforth reagent20039-37-650 % similar
Pyridinium chlorochromate26299-14-950 % similar
Pyrazine290-37-950 % similar
Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds