Hexachlorophene, also known as Nabac, is an antiseptic agent. The compound occurs as a white to light tan crystalline powder which is either odorless or produces a slightly phenolic odor. In medicine, hexachlorophene is very useful as a topical anti-infective, anti-bacterial agent, often used in soaps. It is also used in agriculture as a soil fungicide, plant bactericide, and acaricide.

In 1969, hexachlorophene became suspected of causing cancer. A commercial preparation of the drug, pHisoHex was withdrawn from over-the-counter sales as a treatment for skin acne and became a prescription drug. It was later determined not to cause cancer.

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Organochlorides | Antiseptics