Description

3,7-Bis(2-Hydroxyethyl)-5-[(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Nonadecafluoroundecyl)Oxy]-4,6-Dioxa-3,7-Diaza-5-Phosphanonane-1,9-Diol 5-Oxide is a high-performance, fluorinated phosphate ester surfactant designed to deliver exceptional surface activity and stability in demanding environments. Its unique molecular structure, featuring a long perfluorinated chain, provides outstanding oil and water repellency, low surface tension, and excellent chemical and thermal resistance. This specialty chemical is essential for formulators in industries requiring advanced surface modification, where conventional surfactants fail to perform.

Application

• Fluorinated Surfactant & Leveling Agent: A key component in high-performance coatings, inks, and adhesives to improve wetting, leveling, and substrate adhesion, particularly on low-energy surfaces.
• Oil & Water Repellent Finishes: Used in textile treatment formulations to impart durable stain resistance and repellency to fabrics and technical textiles.
• Firefighting Foam Concentrates (AFFF/FP): Serves as a critical fluorosurfactant in aqueous film-forming foam formulations for rapid fire suppression of flammable liquid fires.
• Specialty Additive for Polymers: Incorporated into fluoropolymer processing aids and as a mold release agent to enhance processing and surface properties.
• Electronic Chemicals: Utilized as a wetting and anti-foaming agent in advanced electronics cleaning solutions and photoresist developers.
• Paper & Packaging Coatings: Provides grease and oil resistance in coatings for food packaging and specialty papers.

Basic Information

Product Name	3,7-Bis(2-Hydroxyethyl)-5-[(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Nonadecafluoroundecyl)Oxy]-4,6-Dioxa-3,7-Diaza-5-Phosphanonane-1,9-Diol 5-Oxide
CAS No.	101896-21-3
Molecular Formula	C₂₃H₂₃F₁₉N₂O₉P
Molecular Weight	824.38 g/mol
Synonyms	3,7-Bis(2-hydroxyethyl)-5-[(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-nonadecafluoroundecyl)oxy]-4,6-dioxa-3,7-diaza-5-phosphanonane-1,9-diol 5-oxide; 5-[(Perfluoroundecyl)oxy]-3,7-bis(2-hydroxyethyl)-4,6-dioxa-3,7-diaza-5-phosphanonane-1,9-diol 5-oxide; Fluorinated phosphate ester surfactant; Perfluoroalkyl phosphate ester; Fluorosurfactant 101896-21-3; FC-Phosphate Ester; Telomer B Phosphate Ester (related class).
EINECS	Contact for details

Quality Control

Our production of this fluorinated specialty chemical adheres to strict quality management systems. Every batch is characterized and tested to ensure consistent performance, with key parameters including fluorinated chain content, active assay, acidity, and ionic impurities. A comprehensive Certificate of Analysis (COA) detailing purity, identity (IR/NMR), and specific performance tests is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong acids, strong bases, and oxidizing agents. The container must be kept tightly sealed due to the hygroscopic nature of the product.

Specification

Item	Specification
Appearance	Clear to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Fluorine Content	≥ 45.0%
Acidity (as H₃PO₄)	≤ 1.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (25°C)	1.5 - 1.7

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