Description

2H,2H,3H,3H-Perfluoroheptanoic Acid CAS NO 80705-13-1 is a partially fluorinated carboxylic acid characterized by its unique combination of a perfluorinated carbon chain tail and a hydrogen-containing segment. This structure provides a critical balance of hydrophobic, oleophobic, and chemical resistance properties while retaining some organic solubility. It serves as a versatile building block and surface modifier in advanced material science. Key industrial users include manufacturers of specialty polymers, surfactants, and high-performance coatings.

Application

• Fluorinated Surfactant & Polymer Synthesis: A key monomer for producing specialty fluorosurfactants and fluoropolymers with enhanced oil, water, and chemical repellency.
• Surface Treatment & Coatings: Used to modify surfaces, imparting low surface energy for anti-stick, anti-fouling, and easy-clean properties in textiles, membranes, and industrial equipment.
• Lithography & Electronics: Employed in photoresist formulations and as a surface leveling agent in the manufacturing of semiconductors and microelectronic components.
• Fire-Fighting Foams (Legacy/Formulation R&D): Historically used in aqueous film-forming foam (AFFF) formulations; relevant for research into alternative chemistries and environmental remediation studies.
• Pharmaceutical & AgroChemical Intermediates: Acts as a precursor for introducing fluorinated segments into bioactive molecules to alter their metabolic stability and lipophilicity.
• Analytical Chemistry & Standards: Serves as a reference standard and reagent in environmental testing for per- and polyfluoroalkyl substances (PFAS).

Basic Information

Product Name	2H,2H,3H,3H-Perfluoroheptanoic Acid
CAS No.	80705-13-1
Molecular Formula	C7H5F9O2
Molecular Weight	316.10 g/mol
Synonyms	Perfluoro(3,5-dihydro-5-methylheptanoic acid); 3H,5H-Perfluoroheptanoic Acid; 2,2,3,3-Tetrafluoro-4-(trifluoromethyl)pentanoic Acid; 4-(Trifluoromethyl)-2,2,3,3-tetrafluoropentanoic Acid; 3,5-Dihydro-5-methyl-3-(perfluoropropyl)pentanoic Acid; Pentafluoropropionic acid, 2,2,3,3-tetrafluoro-4-(trifluoromethyl)-; FC-6-2-2 Acid
EINECS	Contact for details

Quality Control

Our 2H,2H,3H,3H-Perfluoroheptanoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay by HPLC, identification by FT-IR and NMR, and quantification of key impurities. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to ensure compliance with your research and production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its nature as a strong acid/organic solvent, keep away from incompatible materials such as strong bases, oxidizing agents, and reactive metals. Use appropriate corrosion-resistant secondary containment.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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