Pyridine

C₅H₅N

IUPAC: Pyridine

CAS: 110-86-1

Overview

Pyridine is a basic heterocyclic aromatic compound with a characteristic unpleasant fishy odor. It is a fundamental building block in pharmaceutical chemistry.

Composition

Element Symbol Atoms Atomic Mass
Hydrogen H 5 1.0080
Carbon C 5 12.0110
Nitrogen N 1 14.0070

Elemental Composition

H
Hydrogen ×5
6.4%
C
Carbon ×5
75.9%
N
Nitrogen ×1
17.7%

Uses

  • • Pharmaceutical synthesis
  • • Solvent
  • • Denaturant for ethanol
  • • Agricultural chemical precursor

Fun Facts

  • ✦ Added to ethanol as a denaturant to make it undrinkable and tax-free

Safety

  • ⚠ Toxic
  • ⚠ Flammable
  • ⚠ Reproductive toxin

Structure

SMILES

C1=CC=NC=C1

Properties

Type
organic
State
liquid
Molar Mass
79.10 g/mol
Density
0.9820 g/cm³
Melting Point
-41.6 °C
Boiling Point
115.2 °C
Solubility
miscible

Molecular Descriptors

Exact Mass
79.0422
XLogP
0.7
TPSA
12.9 Ų
H-Bond Donors
0
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
6
Complexity
30.0

Related Compounds

1,2-Dichloroethane

C₂H₄Cl₂

1,3-Butadiene

C₄H₆

1,4-Dioxane

C₄H₈O₂

1-Butanol

C₄H₁₀O

2-Propanol

C₃H₈O

Acetaldehyde

CH₃CHO

Acetamide

C₂H₅NO

Acetic Anhydride

C₄H₆O₃

Acetone

(CH₃)₂CO

Acetonitrile

C₂H₃N

Frequently Asked Questions

What is Pyridine?
Pyridine (C₅H₅N) is a organic compound with the IUPAC name Pyridine.
What is the molecular weight of Pyridine?
Pyridine has a molar mass of 79.1 g/mol.
What state is Pyridine at room temperature?
Pyridine is a liquid at room temperature.
Is Pyridine organic or inorganic?
Pyridine is classified as an organic compound.
What elements make up Pyridine?
Pyridine (C₅H₅N) is composed of Hydrogen (H), Carbon (C), Nitrogen (N).