Didecyl Dimethyl Ammonium Chloride

Product Description

Didecyl Dimethyl Ammonium Chloride (DDAC) is a double-chain quaternary ammonium compound widely used in disinfectant and antimicrobial formulations. It exhibits antimicrobial activity against a range of bacteria, fungi, and certain viruses, making it suitable for various disinfection applications, depending on the formulation and validated efficacy data.

As a quaternary ammonium compound, DDAC offers useful formulation properties, including broad application potential and compatibility with water-based systems. Its odor, irritation potential, and overall safety profile depend on the concentration, formulation, and conditions of use. DDAC can be formulated for aqueous applications and generally demonstrates good stability under appropriate storage conditions. These characteristics make it a valuable active ingredient in institutional, commercial, and industrial disinfection products.

DDAC is also subject to compatibility considerations when combined with other chemicals. It may interact with certain anionic substances, particularly anionic surfactants, which can reduce its antimicrobial effectiveness or affect formulation stability. Therefore, compatibility testing is recommended when developing products containing DDAC.

Product Parameters

Safety Information

Application Scenarios

Didecyl Dimethyl Ammonium Chloride (DDAC) is a double-chain quaternary ammonium compound widely used in disinfectant formulations due to its antimicrobial properties. It exhibits activity against a range of microorganisms, including bacteria such as Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa, as well as certain fungi and viruses. Its efficacy against specific pathogens, including Legionella pneumophila and enveloped or non-enveloped viruses, depends on the formulation, concentration, contact time, and validated test results.

Compared with some single-chain quaternary ammonium compounds, DDAC may offer enhanced antimicrobial performance under appropriate application conditions. It is used in formulations designed to control vegetative bacteria, fungi, and certain lipid-enveloped viruses. Its water solubility and surface-active properties also support its use in aqueous disinfectant products for environmental and surface disinfection.

DDAC is suitable for incorporation into a range of institutional, commercial, and industrial disinfection formulations. For preventive disinfection and infection-control applications, its use should follow applicable regulatory requirements and validated product instructions to ensure appropriate efficacy against the target microorganisms.