Octane

Octane is an organic compound with the molecular formula C8H18.

Formula
C8H18
Functional group
Alkanes
Molar mass
114.23 g/mol
Also known as
n-octane, Oktan, Oktanen, Ottani, X1RV0B2FJV

Overview

Octane is an organic compound with the molecular formula C8H18.

Identifiers

Formula
C8H18
Functional group
Alkanes
Molar mass
114.23 g/mol
Also known as
n-octane, Oktan, Oktanen, Ottani, X1RV0B2FJV
Chemical identifiers
SMILES
CCCCCCCC
InChI
InChI=1S/C8H18/c1-3-5-7-8-6-4-2/h3-8H2,1-2H3
PubChem CID
356

Properties

Melting Point
-56.73 °C
Boiling Point
125.62 °C
Density
0.6986 g/cu cm at 25 °C
Water solubility
In water, 0.66 mg/L at 25 °C

Related compounds

References

  1. PubChem Compound Summary: Octane (CID 356)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): Octane — melting pointHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/356#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 94th Edition. CRC Press LLC, Boca Raton: FL 2013-2014, p. 3-426

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

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/356#section=Boiling-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 94th Edition. CRC Press LLC, Boca Raton: FL 2013-2014, p. 3-426

  4. Hazardous Substances Data Bank (HSDB): Octane — densityHazardous Substances Data Bank (HSDB)

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/356#section=Density. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Haynes, W.M. (ed.). CRC Handbook of Chemistry and Physics. 94th Edition. CRC Press LLC, Boca Raton: FL 2013-2014, p. 3-426

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

    Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/356#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Yalkowsky, S.H., He, Yan., Handbook of Aqueous Solubility Data: An Extensive Compilation of Aqueous Solubility Data for Organic Compounds Extracted from the AQUASOL dATAbASE. CRC Press LLC, Boca Raton, FL. 2003., p. 536