ContaminantDB: Octane

Identification Taxonomy Biological Properties Physical Properties Toxicity Profile Spectra Concentrations Links References Targets (2)XML

Record Information

Version

1.0

Creation Date

2009-07-30 17:58:18 UTC

Update Date

2026-03-27 00:48:36 UTC

Accession Number

CHEM002469

Identification

Common Name

Octane

Class

Small Molecule

Description

Octane is an alkane with the chemical formula C8H18. It has 18 isomers. One of the isomers, 2,2,4-trimethylpentane or isooctane, is of major importance, as it has been selected as the 100 point on the octane rating scale, with n-heptane as the zero point. Octane ratings are ratings used to represent the anti-knock performance of petroleum-based fuels (octane is less likely to prematurely combust under pressure than heptane), given as the percentage of 2,2,4-trimethylpentane in an 2,2,4-trimethylpentane / n-heptane mixture that would have the same performance. It is an important constituent of gasoline.

Contaminant Sources

FooDB Chemicals
HMDB Contaminants - Feces
HPV EPA Chemicals
OECD HPV Chemicals
STOFF IDENT Compounds
Sludge Chemicals
T3DB toxins
ToxCast & Tox21 Chemicals

Contaminant Type

Food Toxin
Gasoline Additive/Component
Industrial/Workplace Toxin
Metabolite
Natural Compound
Organic Compound

Chemical Structure

MOL SDF 3D-SDF PDB SMILES InChI View 3D Structure

Synonyms

Value	Source
CH3-[CH2]6-CH3	ChEBI
N-Octane	ChEBI
N-Oktan	ChEBI
Oktan	ChEBI

Chemical Formula

C₈H₁₈

Average Molecular Mass

114.229 g/mol

Monoisotopic Mass

114.141 g/mol

CAS Registry Number

111-65-9

IUPAC Name

octane

Traditional Name

octane

SMILES

CCCCCCCC

InChI Identifier

InChI=1S/C8H18/c1-3-5-7-8-6-4-2/h3-8H2,1-2H3

InChI Key

TVMXDCGIABBOFY-UHFFFAOYSA-N

Chemical Taxonomy

Description

belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms.

Kingdom

Organic compounds

Super Class

Hydrocarbons

Class

Saturated hydrocarbons

Sub Class

Alkanes

Direct Parent

Alkanes

Alternative Parents

Not Available

Substituents

Acyclic alkane
Alkane
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

alkane (CHEBI:17590 )
Hydrocarbons (C01387 )
Hydrocarbons (LMFA11000002 )
a small molecule (CPD-148 )

Biological Properties

Status

Detected and Not Quantified

Origin

Exogenous

Cellular Locations

Membrane

Biofluid Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Applications

Not Available

Biological Roles

xenobiotic

Chemical Roles

Not Available

Physical Properties

State

Liquid

Appearance

Colorless liquid.

Experimental Properties

Property	Value
Melting Point	-56.8°C
Boiling Point	125.6°C (258.1°F)
Solubility	0.00066 mg/mL at 25°C [YALKOWSKY,SH & DANNENFELSER,RM (1992)]

Predicted Properties

Property	Value	Source
Water Solubility	0.0034 g/L	ALOGPS
logP	4.73	ALOGPS
logP	4.02	ChemAxon
logS	-4.5	ALOGPS
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	0	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	0 Å²	ChemAxon
Rotatable Bond Count	5	ChemAxon
Refractivity	38.61 m³·mol⁻¹	ChemAxon
Polarizability	16.42 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	1	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

Spectrum Type	Description	Splash Key	View
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-052o-9000000000-dff2329c36bee36d9e67	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-0006-9000000000-8dd19c0387246b61990c	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-0006-9000000000-d2e1916d68421b915616	Spectrum
GC-MS	GC-MS Spectrum - CI-B (Non-derivatized)	splash10-08fr-9600000000-0ad297c5bbdcd8255dfc	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-052o-9000000000-dff2329c36bee36d9e67	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-0006-9000000000-8dd19c0387246b61990c	Spectrum
GC-MS	GC-MS Spectrum - EI-B (Non-derivatized)	splash10-0006-9000000000-d2e1916d68421b915616	Spectrum
GC-MS	GC-MS Spectrum - CI-B (Non-derivatized)	splash10-08fr-9600000000-0ad297c5bbdcd8255dfc	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	splash10-056u-9100000000-734169bf6be23396487a	Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positive	Not Available	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 10V, N/A (Annotated)	splash10-014i-9200000000-7fa018b6e4635a551621	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 25V, N/A (Annotated)	splash10-05mo-9000000000-ad7800923a7f89ae82a7	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 40V, N/A (Annotated)	splash10-0aru-9100000000-a5dddfe6f629d1371fac	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - EI-B (JEOL JMS-D-3000) , Positive	splash10-052o-9000000000-dff2329c36bee36d9e67	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - EI-B (HITACHI RMU-6M) , Positive	splash10-0006-9000000000-8dd19c0387246b61990c	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - EI-B (HITACHI M-80B) , Positive	splash10-0006-9000000000-0f2c1fefb3562ddd291c	Spectrum
LC-MS/MS	LC-MS/MS Spectrum - CI-B (FINNIGAN-MAT 4500) , Positive	splash10-08fr-9600000000-0ad297c5bbdcd8255dfc	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-014i-0900000000-3d7f12397b129744ef33	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-014i-2900000000-c56ee324b0ebcfc751e7	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-052f-9000000000-fdc491d96317782d7412	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03di-0900000000-eaa7ee0ef9699808e700	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-03di-0900000000-486b5b971ea4d9a97ecb	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-03di-9600000000-9ddf08fb6c571b873cbe	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0ab9-9100000000-c3e1fce5b7d3e8c85d1a	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-0ab9-9000000000-6a868d2187f17076cbf6	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-052f-9000000000-8fc55807287b28c39f95	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 10V, Negative	splash10-03di-0900000000-e85376f8875d5d8518a4	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 20V, Negative	splash10-03di-0900000000-7f4fa004fea60c3d18b7	Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 40V, Negative	splash10-08fr-9500000000-7ccbab85bd6d6023347e	Spectrum
MS	Mass Spectrum (Electron Ionization)	splash10-0006-9000000000-6a16a91b5d2378134116	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	1H NMR Spectrum	Not Available	Spectrum
1D NMR	13C NMR Spectrum	Not Available	Spectrum

Toxicity Profile

Route of Exposure

Oral (11) ; inhalation (11) ; dermal (11)

Mechanism of Toxicity

Petroleum distillates are central nervous system depressants and cause pulmonary damage. (2)

Metabolism

Volatile hydrocarbons are absorbed mainly through the lungs, and may also enter the body after ingestion via aspiration. (2)

Toxicity Values

Not Available

Lethal Dose

Not Available

Carcinogenicity (IARC Classification)

No indication of carcinogenicity to humans (not listed by IARC).

Uses/Sources

Octanes may be found in gasoline. (12)

Minimum Risk Level

Not Available

Health Effects

Petroleum distillates are aspiration hazards and may cause pulmonary damage, central nervous system depression, and cardiac effects such as cardiac arrhythmias. They may also affect the blood, immune system, liver, and kidney. (2, 13)

Symptoms

Petroleum distillate poisoning may cause nausea, vomiting, cough, pulmonary irritation progressing to pulmonary edema, bloody sputum, and bronchial pneumonia. At high amounts, central nervous system depression may also occur, with symptoms such as weakness, dizziness, slow and shallow respiration, unconsciousness, and convulsions. Petroleum distillates are also irritating to the skin. (1)

Treatment

Treatment is mainly symptomatic and supportive. Gastric lavage, emesis, and the administration of activated charcoal should be avoided, as vomiting increases the risk of aspiration. (2)

Concentrations

Not Available

External Links

DrugBank ID

Not Available

HMDB ID

HMDB0001485

FooDB ID

FDB000758

Phenol Explorer ID

Not Available

KNApSAcK ID