Description

3-(Ethyl-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluorooctylsulfonyl)Amino)Propylphosphonic Acid is a high-value, specialty fluorinated phosphonic acid derivative engineered to impart exceptional surface-active properties. This compound is critical for applications requiring extreme hydrophobicity, oleophobicity, and chemical resistance due to its unique perfluorinated chain linked to a phosphonic acid anchoring group. It is primarily sought by advanced material scientists and formulators in the coatings, electronics, and textile industries to develop next-generation, high-performance surface modifiers and functional additives.

Application

• As a key surface modification agent for metals, glass, and ceramics to create ultra-durable water- and oil-repellent coatings.
• As a functional monomer or additive in fluoropolymer synthesis for enhanced chemical and thermal stability.
• In the formulation of anti-fouling and anti-corrosion coatings for marine and industrial applications.
• As a surface anchor for self-assembled monolayers (SAMs) in sensor technology and microelectronics.
• For modifying fiber and fabric surfaces in the technical textiles sector to achieve high-performance stain and liquid resistance.
• As a potential additive in lubricants and greases to reduce friction and wear under extreme conditions.
• In specialty surfactant formulations for demanding environments where conventional surfactants fail.

Basic Information

Product Name	3-(Ethyl-(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluorooctylsulfonyl)Amino)Propylphosphonic Acid
CAS No.	71463-78-0
Molecular Formula	C₁₃H₁₂F₁₇NO₅PS
Molecular Weight	641.25 g/mol
Synonyms	3-[Ethyl(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Heptadecafluorooctylsulfonyl)amino]propylphosphonic Acid; 3-[Ethyl(heptadecafluorooctylsulfonyl)amino]propylphosphonic Acid; Perfluorooctylsulfonyl Ethylamino Propylphosphonic Acid; FOSEPA; Phosphonic acid, P-[3-[ethyl[(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl)sulfonyl]amino]propyl]-
EINECS	Contact for details

Quality Control

Every batch of our fluorinated phosphonic acid is produced and tested under a strict quality management system. We employ advanced analytical techniques including NMR, HPLC, and FTIR to verify chemical identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with each shipment to ensure it meets your precise technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, store under dry, inert conditions (e.g., nitrogen atmosphere) at a controlled room temperature (15-25°C). Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Fluorine Content	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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