Quinoline

Quinoline is an organic compound with the molecular formula C9H7N.

Formula
C9H7N
Molar mass
129.16 g/mol
Also known as
1-Benzazine, Chinoline, Chinoleine, Chinolin, Quinolin, 1-Azanaphthalene

Overview

Quinoline is an organic compound with the molecular formula C9H7N.

Identifiers

Formula
C9H7N
Molar mass
129.16 g/mol
Also known as
1-Benzazine, Chinoline, Chinoleine, Chinolin, Quinolin, 1-Azanaphthalene
Chemical identifiers
SMILES
C1=CC=C2C(=C1)C=CC=N2
InChI
InChI=1S/C9H7N/c1-2-6-9-8(4-1)5-3-7-10-9/h1-7H
PubChem CID
7047

Properties

Melting Point
-14.78 °C
Boiling Point
237.7 °C @ 760 mm Hg
Relative density (water = 1)
Relative density (water = 1): 1.09
Water solubility
In water, 6,110 mg/l @ 25 °C

References

  1. PubChem Compound Summary: Quinoline (CID 7047)National Center for Biotechnology Information · PubChem

    Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.

  2. Hazardous Substances Data Bank (HSDB): Quinoline — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7047#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lide, DR (ed.). CRC Handbook of Chemistry and Physics. 81st Edition. CRC Press LLC, Boca Raton: FL 2000, p. 3-307

  3. Hazardous Substances Data Bank (HSDB): Quinoline — boiling pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7047#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. 13th Edition, Whitehouse Station, NJ: Merck and Co., Inc., 2001., p. 1445

  4. ILO-WHO International Chemical Safety Cards (ICSCs): Quinoline — densityILO-WHO International Chemical Safety Cards (ICSCs)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7047#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred.

  5. Hazardous Substances Data Bank (HSDB): Quinoline — solubilityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/7047#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Smith JH et al; Environmental pathways of selected chemicals in freshwater systems. Part II. Athens, GA: USEPA-600/7-78-074 (1978)