Description

2,2,3,4,4-Pentafluoro-3-butenoic acid is a highly fluorinated, short-chain carboxylic acid characterized by its strong acidity and unique reactivity profile. This compound serves as a valuable fluorinated building block for the synthesis of advanced materials and specialty chemicals. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and advanced polymer industries to introduce pentafluorobutene moieties, enhancing properties like metabolic stability, lipophilicity, and chemical resistance.

Application

• Pharmaceutical Intermediate: A key synthon for introducing fluorinated segments into active pharmaceutical ingredients (APIs) to improve bioavailability and metabolic stability.
• Agrochemical Synthesis: Used in the production of novel herbicides and pesticides, where the fluorine atoms contribute to enhanced activity and environmental persistence.
• Fluoropolymer Modification: Acts as a monomer or modifier in the synthesis of specialty fluoropolymers and coatings, imparting oil/water repellency and chemical resistance.
• Liquid Crystal & Electronic Materials: Serves as a precursor for fluorinated liquid crystals and dielectric materials used in display technologies and electronics.
• Organic Synthesis Reagent: Employed as a strong, fluorinated acid catalyst or reagent in various organic transformations, including esterifications and condensations.
• Surface Active Agent Intermediate: Used to manufacture fluorinated surfactants and emulsifiers for demanding industrial applications.

Basic Information

Product Name	2,2,3,4,4-Pentafluoro-3-butenoic Acid
CAS No.	44969-80-4
Molecular Formula	C4HF5O2
Molecular Weight	176.04 g/mol
Synonyms	Pentafluorobut-3-enoic Acid; 3-Butenoic Acid, 2,2,3,4,4-pentafluoro-; 2,2,3,4,4-Pentafluorobut-3-enoic Acid; 4,4,5,5,5-Pentafluoro-3-butenoic Acid; Perfluorocrotonic Acid (related); PFBA-ene; Pentafluorovinylacetic Acid
EINECS	Contact for details

Quality Control

Our 2,2,3,4,4-Pentafluoro-3-butenoic acid is produced under strict quality management protocols. 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 purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance.

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 strong acid nature, containers should be kept upright and made of compatible materials (e.g., fluoropolymer-lined). Recommended long-term storage temperature is 2-8°C to maximize stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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