Description

1-Propanaminium, n-(Carboxymethyl)-3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-Heneicosafluorododecyl)Sulfonylamino-N,n-Dimethyl-, Inner Salt is a high-performance fluorinated surfactant and zwitterionic compound, distinguished by its unique perfluorinated alkyl chain. This structure is critical for delivering exceptional surface tension reduction, thermal stability, and chemical resistance in demanding formulations. It is an essential material for industries requiring advanced performance in coatings, electronics, and specialty chemical processing where standard surfactants fail.

Application

• Fluoropolymer Processing Aid: Acts as a critical surfactant and leveling agent in the manufacture of PTFE, FEP, and PFA dispersions and coatings.
• Fire-Fighting Foam Concentrates (AFFF/AR-AFFF): Provides the key film-forming fluorosurfactant component for high-performance, fast-spreading aqueous film-forming foams.
• Specialty Coatings and Inks: Enhances wetting, leveling, and substrate adhesion in high-value fluorinated coatings, printing inks, and anti-graffiti paints.
• Electronics and Semiconductor Fabrication: Used in photoresist developers and cleaning formulations for superior wetting on hydrophobic silicon wafers.
• Oil & Gas Field Chemicals: Functions as a fluorosurfactant in acidizing and fracturing fluids to improve penetration and recovery.
• Textile and Leather Treatment: Imparts durable oil, water, and stain repellency to fabrics and finished leather goods.

Basic Information

Item	Details
Product Name	1-Propanaminium, n-(Carboxymethyl)-3-(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-Heneicosafluorododecyl)Sulfonylamino-N,n-Dimethyl-, Inner Salt
CAS No.	34455-35-1
Molecular Formula	C₂₀H₂₀F₂₁N₂O₅S
Molecular Weight	794.42 g/mol
Synonyms	N-(Carboxymethyl)-N,N-dimethyl-3-[(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,12-heneicosafluorododecyl)sulfonyl]-1-propanaminium hydroxide, inner salt; 3-[(Perfluoro-1-dodecanesulfonyl)amino]-N-(carboxymethyl)-N,N-dimethyl-1-propanaminium hydroxide, inner salt; Fluorinated alkyl betaine surfactant; FC-248 Fluorosurfactant (trade name example); Perfluorododecyl sulfonamido betaine; Zwitterionic fluorosurfactant; Forafac® 1157N (related trade name); Capstone® FS-63 (related trade name).
EINECS	Contact for details

Quality Control

Our production of this fluorosurfactant adheres to stringent quality management systems (ISO 9001). Every batch is characterized by advanced analytical techniques including NMR, HPLC, and FTIR to confirm identity, purity, and the critical perfluorinated chain length. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and performance-related physical properties is provided with each shipment to ensure consistency for your formulation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials. Due to its complex structure, prolonged exposure to elevated temperatures or humidity should be avoided.

Specification

Item	Specification
Appearance	White to off-white waxy solid or paste
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Active Fluorosurfactant Content	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (1% Solution)	6.0 - 8.0
Surface Tension (0.1% aq. sol.)	≤ 20 mN/m

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