N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide CAS 1691-99-2

What is N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide CAS 1691-99-2?

N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide CAS 1691-99-2 (commonly known as N-EtFOSE) belongs to the class of perfluoroalkyl substances (PFAS). It is structurally characterized by a fully fluorinated eight-carbon chain attached to a sulfonamide group bearing ethyl and hydroxyethyl substituents. Under ambient conditions, this compound typically presents as an off-white to pale-yellow solid.

Specifications

Features

• High Surface Activity: Functions as an efficient nonionic fluorosurfactant, dramatically lowering surface tension due to its amphiphilic structure consisting of a highly hydrophobic/lipophilic perfluorinated tail and a polar sulfonamide head group.
• Dual Repellency: The perfluorinated segment confers extreme oil, water, and stain repellency, providing maximum protection when incorporated into surface treatments.
• Exceptional Chemical & Thermal Stability: Possesses robust carbon-fluorine bonds that exhibit high resistance to thermal degradation, chemical oxidation, and harsh processing conditions.
• Versatile Intermediate Scaffold: Serves as a vital precursor or structural building block for the synthesis of advanced polymers, polymers modifiers, and specialized fluorinated surfactants.

Applications

• Surface Treatment & Coatings: Extensively utilized in industrial and consumer coatings to impart long-lasting water, oil, and stain resistance to textiles, leather, paper, and hard surfaces.
• Specialty Surfactants & Wetting Agents: Formulated into specialized chemical systems where ultra-low surface tension and high chemical stability are required to maximize wetting and spreading efficiency.
• Analytical Reference Standards: Widely employed in environmental testing and regulatory compliance laboratories as a high-purity reference standard for the trace analysis of PFAS compounds in soil and water matrices.
• Fluorochemical Synthesis: Actively used as a critical chemical feedstock in research and development for building structurally complex fluorinated monomers and performance derivatives.

Packaging

Mikem offers flexible packaging options, including 25 kg of fiber drums for liquid products and 15–25 kg PP/PE bags for powder products, all customizable to meet your specific needs.