Views: 0 Author: Site Editor Publish Time: 2026-04-06 Origin: Site
In various industrial and scientific fields, finding reliable, multi-functional ingredients is key to improving product performance and production efficiency. Didecyldimethylammonium Bromide, commonly known as DDAB (CAS No.: 2390-68-3), is a high-performance cationic surfactant and quaternary ammonium compound. It is widely used for its excellent antimicrobial properties, surfactant functions, and phase transfer catalytic abilities, serving as an essential raw material in many industries.
DDAB (CAS 2390-68-3) usually appears as an off-white crystalline solid at room temperature, with a molecular weight of approximately 406.53 g/mol. It is soluble in methanol and has good solubility in organic solvents such as ethanol and ether, which makes it easy to mix with other ingredients in different formulations. Its amphiphilic structure—with a positively charged hydrophilic head and hydrophobic decyl chains—gives it unique surfactant and antimicrobial capabilities, making it suitable for diverse application scenarios.
DDAB’s stable performance and multiple functions make it widely used in industrial, pharmaceutical, personal care, and chemical synthesis fields. Below are its specific applications:
In industrial circulating water systems, microbial growth and algae reproduction can cause pipeline blockage and equipment corrosion, affecting production efficiency. DDAB (2390-68-3) is an effective antimicrobial agent for water treatment. It can inhibit the growth of bacteria, fungi, and algae in circulating water, reduce the formation of biofilms, and maintain the stable operation of the water system. It works well in a wide pH range and is compatible with most common water treatment agents, making it easy to add and use in large-scale industrial production.
In the petroleum industry, DDAB is used as an antimicrobial and preservative in oilfield drilling fluids and completion fluids. It can prevent microbial corruption and corrosion of drilling equipment, ensuring the smooth progress of drilling operations. In metal processing, it is added to metalworking fluids to inhibit microbial growth, preventing the deterioration of processing fluids and extending their service life. Its good hydrophobicity also makes it effective in oily environments, which is suitable for the special needs of these industries.
DDAB (CAS 2390-68-3) serves as an excellent phase transfer catalyst in organic synthesis. It can promote reactions between reactants in different phases (such as aqueous and organic phases), increase reaction rates and yields, and is widely used in nucleophilic substitution, oxidation, and reduction reactions. In the pharmaceutical industry, it is used as an excipient or intermediate in some formulations, helping to solubilize insoluble compounds and support drug delivery research. It is also used in cell culture media for biological research purposes.
In the coatings industry, DDAB is added to water-based coatings and latex paints as a preservative. It can inhibit the growth of mold and bacteria in coatings, preventing mildew and deterioration during storage and ensuring product quality. In the daily chemical industry, it is used in men’s oil-control facial cleansers (at a concentration of 0.5%-1%) for its antimicrobial and oil-control properties, helping to keep the skin clean.
DDAB is an effective ingredient in industrial cleaning products, especially for cleaning mechanical surfaces with heavy oil stains. Its surfactant properties help lift and remove oil and dirt, while its antimicrobial action reduces microbial residues on surfaces. It is suitable for cleaning production equipment, workshops, and storage areas in industries such as food packaging and machinery processing, helping enterprises meet hygiene and safety standards.
When using DDAB (2390-68-3), it is important to follow safety guidelines: it should be stored in a cool, dry, and dark place, away from high temperatures and strong oxidants. It is slightly irritating to the skin and eyes, so protective gloves and goggles should be worn during operation. It should not be mixed with anionic surfactants, as this may affect its performance. Waste liquid after use should be treated properly before discharge to avoid environmental impact.
Didecyldimethylammonium Bromide (DDAB, CAS 2390-68-3) is a versatile and reliable ingredient with excellent antimicrobial, surfactant, and catalytic properties. Its wide range of applications covers industrial water treatment, petroleum processing, chemical synthesis, coatings, and daily chemicals. With its stable performance and easy usability, DDAB has become an indispensable raw material for many industries, providing strong support for improving product quality and production efficiency.
