O

1-Octanol

IUPAC: octan-1-ol

C8H18O Organic Compounds CAS 111-87-5
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Quick Reference
Formula / NotationC8H18O
CAS Number111-87-5
Molecular Weight130.23
Melting Point5 °F (USCG, 1999)
Boiling Point383 °F at 760 mmHg (USCG, 1999)
Density0.829 at 68 °F (USCG, 1999) - Less dense than water; will float
SolubilityIn water, 540 mg/L at 25 °C
AppearanceOctanol appears as a clear colorless liquid with a penetrating aromatic odor. Insoluble in water and floats on water. Vapors heavier than air. Vapors may irritate the eyes, nose, and respiratory sy...
Also Known Asoctan-1-ol; Octan-1-ol; N-octanol; 111-87-5; Octyl alcohol; caprylic alcohol; n-Octyl alcohol; Heptyl carbinol; 1-Hydroxyoctane; Octilin
CategoryOrganic Compounds

What is 1-Octanol?

Octan-1-ol is an octanol carrying the hydroxy group at position 1. It has a role as an antifungal agent, a fuel additive, a plant metabolite, a bacterial metabolite and a kairomone. It is a primary alcohol and an octanol.

Formula & Notation

C8H18O

IUPAC Name: octan-1-ol

Other Names / Synonyms: octan-1-ol; Octan-1-ol; N-octanol; 111-87-5; Octyl alcohol; caprylic alcohol; n-Octyl alcohol; Heptyl carbinol; 1-Hydroxyoctane; Octilin

Properties & Characteristics

Appearance: Octanol appears as a clear colorless liquid with a penetrating aromatic odor. Insoluble in water and floats on water. Vapors heavier than air. Vapors may irritate the eyes, nose, and respiratory sy.... Molecular formula: C8H18O. Molecular weight: 130.23 g/mol. Boiling point: 383 °F at 760 mmHg (USCG, 1999). Melting point: 5 °F (USCG, 1999). Density: 0.829 at 68 °F (USCG, 1999) - Less dense than water; will float. Solubility: In water, 540 mg/L at 25 °C. Vapor pressure: 0.07 [mmHg]. LogP: 3.

Physical Data

PropertyValue
Melting Point5 °F (USCG, 1999)
Boiling Point383 °F at 760 mmHg (USCG, 1999)
Density0.829 at 68 °F (USCG, 1999) - Less dense than water; will float
Molecular Weight130.23
SolubilityIn water, 540 mg/L at 25 °C
AppearanceOctanol appears as a clear colorless liquid with a penetrating aromatic odor. Insoluble in water and floats on water. Vapors heavier than air. Vapors may irritate the eyes, nose, and respiratory sy...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term 1-Octanol
Formula C8H18O
CAS Number 111-87-5
Molecular Weight 130.23
Synonyms octan-1-ol; Octan-1-ol; N-octanol; 111-87-5; Octyl alcohol; caprylic alcohol; n-Octyl alcohol; Heptyl carbinol; 1-Hydroxyoctane; Octilin

Frequently Asked Questions

Octan-1-ol is an octanol carrying the hydroxy group at position 1. It has a role as an antifungal agent, a fuel additive, a plant metabolite, a bacterial metabolite and a kairomone. It is a primary alcohol and an octanol.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.