Chlorobutanol

Chlorobutanol crystals

Chlorobutanol is a chemical compound with the formula C₄H₇Cl₃O. It is a colorless, crystalline solid with a camphor-like odor. Chlorobutanol is used as a preservative and an antiseptic in various pharmaceutical and cosmetic products.

Chemical Properties

Chlorobutanol is a trihalogenated alcohol, specifically a trichloro derivative of butanol. It is soluble in water, alcohol, and glycerin, but it is insoluble in ether. The compound is stable under normal conditions but can decompose when exposed to light or heat.

Uses

Chlorobutanol is primarily used as a preservative in ophthalmic and otic solutions, injectable medications, and cosmetic products. It is effective in preventing the growth of bacteria and fungi, thereby extending the shelf life of these products.

In addition to its preservative properties, chlorobutanol has mild anesthetic and sedative effects. It is sometimes used in cough syrups and lozenges to provide relief from coughing and sore throat.

Mechanism of Action

Chlorobutanol exerts its preservative effect by disrupting the cell membranes of microorganisms, leading to cell lysis and death. Its anesthetic properties are due to its ability to stabilize neuronal membranes, reducing their excitability and thus providing a numbing effect.

Safety and Toxicity

Chlorobutanol is generally considered safe when used in low concentrations as a preservative. However, it can be toxic if ingested in large amounts. Symptoms of chlorobutanol toxicity include nausea, vomiting, dizziness, and central nervous system depression. It is important to use chlorobutanol-containing products as directed to avoid potential adverse effects.

Related Pages

• Preservative
• Anesthetic
• Trichloroethanol
• Butanol