Description

Perfluoroundecanoic Acid is a high-purity, long-chain perfluorinated carboxylic acid (PFCA) with the CAS number 2058-94-8. This compound serves as a critical building block and performance additive, valued for its exceptional chemical and thermal stability imparted by the perfluorinated carbon chain. It is essential for manufacturers and researchers in advanced material science, surface modification, and specialty chemical synthesis who require reliable, high-quality fluorochemical intermediates.

Application

• Fluoropolymer & Fluorosurfactant Synthesis: A key monomer or intermediate in the production of specialized fluoropolymers and high-performance surfactants.
• Surface Treatment & Coatings: Used to impart oil, water, and stain repellency to textiles, carpets, and industrial materials.
• Lithium-Ion Battery Electrolytes: Employed as an additive to enhance electrolyte stability and battery cycle life.
• Pharmaceutical & Agrochemical Intermediates: Serves as a precursor for introducing perfluoroalkyl groups into bioactive molecules.
• Analytical Standards & Research: Used as a reference standard in environmental testing and toxicological studies of perfluoroalkyl substances (PFAS).
• Electronic Chemicals: Applied in the formulation of advanced etching agents and cleaning solutions for semiconductor manufacturing.

Basic Information

Product Name	Perfluoroundecanoic Acid
CAS No.	2058-94-8
Molecular Formula	C11HF21O2
Molecular Weight	564.08 g/mol
Synonyms	PFUnA; Undecafluoroundecanoic Acid; Henicosafluoroundecanoic Acid; Perfluoro-n-undecanoic Acid; 2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-Henicosafluoroundecanoic Acid; FC-21; Perfluoro C10 Acid
EINECS	218-165-4

Quality Control

Our Perfluoroundecanoic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Approx. 105 - 110 °C
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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