Also known as: Isooctane. CAS Number: 540-84-1. A colorless,
highly flammable, mobile liquid that is practically insoluble in
water. Used to determine octane numbers of motor fuels, as a
thinner and solvent. Chemical formula = C8H18. Molecular weight =
114.22 g/mol.
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2,2,4-Trimethylpentane is released to the environment through the
manufacture, use, and disposal of products associated with the
petroleum and gasoline industry. During an accident,
2,2,4-trimethylpentane penetrated the skin of a human which
caused necrosis of the skin and tissue in the hand and required
surgery. No other information is available on the acute
(short-term) effects in humans. Irritation of the lungs, edema,
and hemorrhage have been reported in rodents acutely exposed by
inhalation and injection. No information is available on the
chronic (long-term), reproductive, developmental, or carcinogenic
effects of 2,2,4-trimethylpentane in humans. Kidney and liver
effects have been observed in rats chronically exposed via gavage
(experimentally placing the chemical in the stomach) and
inhalation. EPA has not classified 2,2,4-trimethylpentane with
respect to potential carcinogenicity.