Description

2,2,3,3,4,4,5,5-Octafluoropentanoic Acid Methyl Ester is a high-purity fluorinated ester building block, essential for introducing perfluorinated alkyl segments into target molecules. Its value lies in providing unique properties such as enhanced chemical stability, hydrophobicity, and lipophilicity to advanced materials and pharmaceuticals. This compound is a critical intermediate for researchers and manufacturers in the agrochemical, pharmaceutical, and specialty polymer industries seeking to develop novel products with tailored performance characteristics.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and diagnostic agents that require fluorinated motifs for improved metabolic stability and bioavailability.
• Agrochemical Synthesis: Serves as a key precursor for developing advanced herbicides, pesticides, and fungicides where fluorine atoms enhance biological activity and environmental persistence.
• Fluorinated Polymer Production: Acts as a monomer or modifier in the creation of specialty polymers, coatings, and surfactants with oil- and water-repellent (omniphobic) properties.
• Liquid Crystal & Electronic Materials: Employed in the manufacture of fluorinated liquid crystals and dielectric fluids for high-performance displays and electronic applications.
• Organic Synthesis Building Block: Provides a versatile perfluorinated pentyl synthon for constructing complex molecules in medicinal chemistry and material science R&D.
• Surface Treatment Agent: Used to modify surface energies in textiles, membranes, and composites to achieve specific hydrophobic or oleophobic characteristics.

Basic Information

Item	Detail
Product Name	2,2,3,3,4,4,5,5-Octafluoropentanoic Acid Methyl Ester
CAS No.	54822-22-9
Molecular Formula	C6H4F8O2
Molecular Weight	236.09 g/mol
Synonyms	Methyl 2,2,3,3,4,4,5,5-octafluoropentanoate; Methyl perfluoropentanoate; Methyl perfluorovalerate; Octafluoropentanoic acid methyl ester; Methyl 4,4,5,5,6,6,7,7-octafluoroheptanoate (common misnomer); Perfluorovaleric acid methyl ester; C4F9COOCH3; 2,2,3,3,4,4,5,5-Octafluoropentanoic Acid, Methyl Ester
EINECS	Contact for details

Quality Control

Our 2,2,3,3,4,4,5,5-Octafluoropentanoic Acid Methyl Ester is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including GC, NMR, and FTIR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, open flames, and strong oxidizing agents. For long-term storage, consider holding under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.320 - 1.340
Density (20°C)	1.55 - 1.65 g/mL

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