Agent Name

2-Methylpentane

CAS Number

107-83-5

Formula

C6-H14

Major Category

Solvents

Synonyms

1,1-Dimethylbutane; Dimethylpropylmethane; Isohexane; Pentane, 2-methyl-; [ChemIDplus] UN1208

Category

Aliphatics, Saturated (<C12)

Description

Colorless liquid with a faint petroleum odor; [CHEMINFO]

Sources/Uses

Used as a solvent and to make other organic chemicals; [Hawley] Used as solvent (vegetable oils, glues, coatings, and paints); Found in gasoline, rubber solvent, and petroleum ether; [ACGIH]

Comments

Causes narcosis in mice at 30,000 ppm in 30-60 minutes; Unlike n-Hexane, it is not converted in the body into metabolites that cause peripheral neuropathy. Use the lower TLV of n-Hexane when commercial preparations contain >5% n-Hexane. [ACGIH] No listed effects of short-term or long-term exposure; [ICSC] An eye irritant; [HSDB] Inhalation of high concentrations can cause CNS depression; [CHEMINFO] An irritant; Inhalation of high concentrations may cause CNS effects; [MSDSonline]

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

500 ppm

STEL (ACGIH)

1000 ppm

MAK

500 ppm

Vapor Pressure

211 mm Hg

Explanatory Notes

Flash point = -23 deg C; [Hawley] Odor threshold low = 0.2886 mg/m3; High = 0.2886 mg/m3; [HSDB] The Guide from the Emergency Response Guidebook is for "Hexanes."

Flammability (NFPA)

3: May ignite at ambient temperature

Adverse Effects
Neurotoxin

CNS Solvent Syndrome

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: