ATSDR - Toxic Substances - Pentachlorophenol
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Pentachlorophenol

CAS ID #: 87-86-5

Affected Organ Systems: Developmental (effects during periods when organs are developing) , Endocrine (Glands and Hormones), Hematological (Blood Forming), Reproductive (Producing Children)

Cancer Classification: None

Chemical Classification: Nitrosamines/ethers/alcohols, Pesticides (chemicals used for killing pests, such as rodents, insects, or plants), Phenols/phenoxy acids

Summary: Pentachlorophenol is a manufactured chemical that does not occur naturally. Pure pentachlorophenol exists as colorless crystals. Impure pentachlorophenol (the form usually found at hazardous waste sites) is dark gray to brown and exists as dust, beads, or flakes. Humans are usually exposed to impure pentachlorophenol (also called technical grade pentachlorophenol). Pentachlorophenol was widely used as a pesticide and wood preservative. Since 1984, the purchase and use of pentachlorophenol has been restricted to certified applicators. It is no longer available to the general public. It is still used industrially as a wood preservative for utility poles, railroad ties, and wharf pilings.

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  • Toxicological Profile

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  • Addendum to the Profile (PDF, 599KB*)

    Addendum to the Toxicological Profile for Pentachlorophenol (August 2012)

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