Dioctyldimethylammonium chloride

Dioctyldimethylammonium chloride (CAS 5538-94-3), also known as DODAC or Dioctyldimonium chloride, is a quaternary ammonium compound used as a cationic surfactant and biocide across personal care, industrial cleaning, and water treatment sectors.

Its cationic charge drives adsorption onto negatively charged surfaces, enabling effective antimicrobial action and surface conditioning in a single active ingredient. In water treatment, DODAC functions as a biocidal agent controlling microbial growth.

It is widely utilized in cooling towers, industrial process water, and swimming pool systems. Personal care formulators incorporate it into hair conditioners and rinse-off treatments, where it deposits on hair fiber to reduce static.

This chemical helps to improve combability in hair care applications. Textile and leather processors apply it as a softening and antistatic agent during finishing operations, improving handle and reducing friction in finished goods.

In industrial and institutional cleaning formulations, it contributes both surfactant and disinfectant activity. This reduces the need for separate actives in hard-surface sanitizers and specialized cleaning solutions for commercial use.

Dioctyldimethylammonium chloride is supplied as an aqueous solution, with active concentrations typically ranging from 50% to 80%. Technical and industrial grades are the standard commercial forms for most global buyers.

It is commonly available under trade designations including Querton 28CL and Dodigen 2617, which buyers may encounter as distinct product references from different manufacturers. The material is handled according to standard chemical safety protocols.