chlorobutanol

Chlorobutanol (Chlortran) is a chemical preservative, sedative hypnotic and weak local anaesthetic. It has Antibacterial and Antifungal properties. Chlorobutanol is typically used at a concentration of 0.5% where it lends long-term stability to multi-ingredient formulations.

Chlorobutanol hemihydrate (Chlorbutol hemihydrate) is an orally toxic preservative with antimicrobial activity that inhibits Gram-positive and Gram-negative bacteria and fungi, inhibits the aggregation and release of human platelets in vitro, and is commonly used in cosmetics.