Description

4,4-Bis(Trifluoromethyl)-5,5,6,6,7,7,7-Heptafluoroheptanoic Acid CAS NO 129991-14-6 is a highly fluorinated carboxylic acid characterized by its unique perfluoroalkyl chain and terminal acid functionality. This compound is a valuable specialty fluorochemical building block prized for its ability to impart exceptional chemical resistance, thermal stability, and hydrophobic/lipophobic properties to advanced materials. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and high-performance polymer industries for synthesizing novel fluorinated compounds.

Application

• Pharmaceutical Intermediate: Serves as a key precursor for synthesizing fluorinated active pharmaceutical ingredients (APIs) and prodrugs, enhancing metabolic stability and bioavailability.
• Agrochemical Synthesis: Used in the development of advanced fluorinated pesticides and herbicides, where the fluorine atoms improve efficacy and environmental persistence.
• Fluorinated Surfactant & Polymer Monomer: Acts as a building block for creating specialty surfactants, coatings, and elastomers with superior oil, water, and chemical resistance.
• Liquid Crystal & Electronic Materials: Employed in the synthesis of fluorinated components for liquid crystal displays (LCDs) and dielectric materials in electronics.
• Catalyst Ligand & Metal Complex Precursor: The carboxylic acid group allows for the formation of chelating ligands used in catalysis and material science.
• Research & Development: A critical reagent in academic and industrial R&D for exploring new fluorochemistry and material properties.

Basic Information

Product Name	4,4-Bis(Trifluoromethyl)-5,5,6,6,7,7,7-Heptafluoroheptanoic Acid
CAS No.	129991-14-6
Molecular Formula	C9H3F13O2
Molecular Weight	414.10 g/mol
Synonyms	5,5,6,6,7,7,7-Heptafluoro-4,4-bis(trifluoromethyl)heptanoic Acid; Heptafluoro-4,4-bis(trifluoromethyl)heptanoic Acid; 4,4-Bis(trifluoromethyl)perfluoroheptanoic Acid; 4,4-Bis(trifluoromethyl)-5,5,6,6,7,7,7-heptafluoro-heptanoic acid; 129991-14-6; Perfluoro-tert-butylbutyric Acid (derivative)
EINECS	Contact for details

Quality Control

Our production of 4,4-Bis(Trifluoromethyl)-5,5,6,6,7,7,7-Heptafluoroheptanoic Acid adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%
NMR Purity	Conforms

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