Description

9H-Hexadecafluorononanoic Acid is a high-purity, fully fluorinated medium-chain carboxylic acid, a key building block in advanced material science. Its unique perfluorinated structure provides exceptional chemical and thermal stability, making it invaluable for creating surfaces with low surface energy and high repellency. This compound is essential for R&D and manufacturing in the pharmaceutical, agrochemical, and specialty polymer industries, where its properties drive innovation in performance materials and active ingredient synthesis.

Application

• Fluorinated Surfactant & Polymer Intermediate: A critical precursor for synthesizing high-performance fluorosurfactants and fluoropolymers used in coatings, films, and resins.
• Pharmaceutical & Agrochemical Synthesis: Serves as a key intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals, leveraging its metabolic stability.
• Surface Modification Agent: Used to impart oil, water, and stain repellency to textiles, leather, paper, and non-woven materials.
• Electronic Chemicals: Employed in the formulation of specialty etchants, cleaning agents, and coatings for the semiconductor and electronics industries.
• Analytical Chemistry & Research: Acts as a standard or reagent in analytical methods and fundamental research on fluorinated compounds.
• Fire-Fighting Foams (Legacy/Research): Historically studied for use in aqueous film-forming foams (AFFF); current supply focuses on controlled research and alternative development.

Basic Information

Product Name	9H-Hexadecafluorononanoic Acid
CAS No.	76-21-1
Molecular Formula	C9H2F16O2
Molecular Weight	398.09 g/mol
Synonyms	Perfluorononanoic Acid; PFNA; Heptadecafluorononanoic Acid; Nonadecafluorononanoic Acid; 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-Heptadecafluorononanoic Acid; FC-26; Perfluoro-n-nonanoic Acid; 1H,1H,2H,2H-Perfluorononanoic Acid; F-n-C8; EINECS 200-941-8
EINECS	200-941-8

Quality Control

Our 9H-Hexadecafluorononanoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and high industry standards. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency for your critical applications.

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, appropriate secondary containment is recommended. For long-term storage, maintain at controlled room temperature (15-25°C).

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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