Agent Name

Isooctane

Alternative Name

2,2,4-Trimethylpentane

CAS Number

540-84-1

Formula

C8-H18

Major Category

Solvents

Synonyms

2,4,4-Trimethylpentane; Isobutyltrimethylmethane; Pentane, 2,2,4-trimethyl; 2,2,4-Trimethylpentane; [ChemIDplus] UN1262

Category

Aliphatics, Saturated (<C12)

Description

Colorless liquid with an odor of gasoline; [HSDB]

Sources/Uses

Used in octane analysis of fuels and in spectrophotometric analysis; Also used as a solvent, thinner, and chemical intermediate; [HSDB]

Comments

A skin, eye, and respiratory tract irritant; May cause kidney and liver injury; Inhalation of high concentrations can cause CNS depression; [ICSC] An irritant; In high-dose animal studies, causes liver and kidney injury; [MSDSonline] See "Octane."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

300 ppm

Vapor Pressure

49.3 mm Hg

Explanatory Notes

Flash point = -12 deg C; [Merck Index]

Flammability (NFPA)

3: May ignite at ambient temperature

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: