Description

Perfluoro-3,5,5'-Trimethylhexanoic Acid is a highly fluorinated carboxylic acid characterized by its exceptional chemical and thermal stability. This compound is valued for its strong acidic properties and excellent solubility in organic solvents, making it a versatile intermediate and reagent. It is primarily sought by industries involved in advanced material science, specialty chemical synthesis, and the development of surfactants and coatings where fluorinated building blocks are required.

Application

• Fluorinated Surfactant & Polymer Synthesis: A key building block for creating high-performance, low-surface-tension surfactants and fluoropolymers.
• Catalyst & Reagent in Organic Synthesis: Used as a strong acid catalyst or a perfluoroalkylating agent in specialized chemical reactions.
• Advanced Material Coatings: Imparts oil, water, and stain repellency to textiles, paper, and other substrates.
• Electronic Chemicals: Potential use in the formulation of etching solutions or surface treatments for semiconductors and electronic components.
• Pharmaceutical & Agrochemical Intermediates: Serves as a precursor for introducing perfluoroalkyl groups into bioactive molecules to alter their properties.
• Fire-Fighting Foam Formulations (Legacy/Research): Historically studied for use in aqueous film-forming foams (AFFF), though regulations are shifting.

Basic Information

Product Name	Perfluoro-3,5,5'-Trimethylhexanoic Acid
CAS No.	238403-51-5
Molecular Formula	C9H3F15O2
Molecular Weight	464.09 g/mol
Synonyms	Perfluoro-3,5,5-trimethylhexanoic Acid; 3,5,5-Trimethylhexanoic Acid, perfluoro-; Heptadecafluoro-3,5,5-trimethylhexanoic Acid; PF-3,5,5-TMHA; Perfluorinated Trimethylhexanoic Acid; C9 Perfluorinated Carboxylic Acid; FC-9 Acid (industry abbreviation); 2,2,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Heptadecafluoro-3,5,5-trimethylnonanoic Acid (alternative IUPAC-style)
EINECS	Contact for details

Quality Control

Our production of Perfluoro-3,5,5'-Trimethylhexanoic Acid adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including NMR (19F, 1H), GC-MS, and acid-base titration to confirm identity, purity, and assay. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Due to its nature as a strong acid/organic solvent, containers should be kept tightly sealed to prevent moisture absorption and minimize vapor release. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (Titration)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%
Fluorine Content	≥ 73.0%

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