Description

[3-[Ethyl[(Pentadecafluoroheptyl)Sulfonyl]Amino]Propyl]Phosphonic Acid Diethyl Ester is a high-value, specialty fluorinated organophosphorus compound. Its unique molecular structure, featuring a long perfluoroalkyl chain linked to a phosphonic ester, provides exceptional surface activity and chemical stability. This product is essential for manufacturers requiring advanced performance additives in demanding environments. Key target industries include electronics, specialty coatings, and high-performance materials.

Application

• Surface Modification Agent for imparting oil, water, and stain repellency to textiles, paper, and leather.
• Additive for Specialty Coatings & Inks to enhance leveling, wetting, and anti-foaming properties, particularly in fluoropolymer systems.
• Intermediate for Fluorinated Surfactants used in fire-fighting foams, photographic films, and electronic etching solutions.
• Key raw material in the synthesis of novel anion-exchange membranes for fuel cells and other electrochemical devices.
• Adhesion Promoter & Coupling Agent in composite materials to improve bonding between fluorinated polymers and inorganic substrates.
• Research & Development of novel materials with specific surface energies and chemical functionalities.

Basic Information

Product Name	[3-[Ethyl[(Pentadecafluoroheptyl)Sulfonyl]Amino]Propyl]Phosphonic Acid Diethyl Ester
CAS No.	71463-81-5
Molecular Formula	C₁₆H₁₇F₁₅NO₅PS
Molecular Weight	663.32 g/mol
Synonyms	Diethyl [3-[ethyl[(pentadecafluoroheptyl)sulfonyl]amino]propyl]phosphonate; 3-[Ethyl[(heptadecafluorooctyl)sulfonyl]amino]propylphosphonic Acid Diethyl Ester (common naming variant); F-PAS Ester; Fluorinated Phosphonic Acid Sulfonamide Ester; N-Ethyl-N-(3-diethoxyphosphorylpropyl)perfluoroheptanesulfonamide; Ethyl(3-diethoxyphosphorylpropyl)(perfluoroheptylsulfonyl)amine; FC-4432 (potential trade name analog); Perfluoroalkylsulfonamidoalkylphosphonate Ester
EINECS	Contact for details

Quality Control

Our production of this specialty fluorochemical adheres to a strict quality management system. Every batch is characterized using advanced analytical techniques including NMR (¹H, ¹⁹F, ³¹P), HPLC, and GC to ensure structural integrity and purity. A Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment. We support compliance with global regulatory frameworks such as REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. For long-term storage, consider an inert atmosphere to maintain optimal quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Fluorine Content	~ 43.0% (Theoretical)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.