Description

2,2,3,3,4,4,4-Heptafluorobutyl Chloroformate is a specialized fluorinated chloroformate ester, a key reagent for introducing the heptafluorobutyl moiety. This compound matters for its role as a versatile building block in synthesizing advanced materials and pharmaceuticals, where its perfluorinated chain imparts unique properties like enhanced stability and hydrophobicity. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for creating novel fluorinated compounds.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing fluorinated groups to modulate bioavailability and metabolic stability.
• Agrochemical Synthesis: Serves as a key reagent in creating advanced fluorinated pesticides and herbicides with improved environmental persistence and efficacy.
• Polymer Modification: Employed to incorporate fluorinated side chains into polymers, enhancing material properties such as chemical resistance, low surface energy, and thermal stability.
• Surface Treatment Agent: Acts as a precursor for coatings that provide oil, water, and stain repellency to textiles, electronics, and optical components.
• Liquid Crystal & OLED Material Production: Utilized in the synthesis of fluorinated components for electronic display materials, improving performance and longevity.
• Derivatization Reagent for Analytics: Can be used to derivative compounds for gas chromatography (GC) or mass spectrometry (MS) analysis to improve detection.

Basic Information

Product Name	2,2,3,3,4,4,4-Heptafluorobutyl Chloroformate
CAS No.	108156-21-4
Molecular Formula	C5H2ClF7O2
Molecular Weight	262.51 g/mol
Synonyms	Heptafluorobutyl Chloroformate; 1H,1H-Perfluorobutyl Chloroformate; Chloroformic Acid Heptafluorobutyl Ester; 2,2,3,3,4,4,4-Heptafluoro-1-butyl Chloroformate; Perfluorobutyl Chloroformate; 1,1,2,2,3,3,4,4,4-Nonafluorobutyl Chloroformate (incorrect but common alias); HCFC-Butyl Ester (informal); F7B Chloroformate
EINECS	Contact for details

Quality Control

Our 2,2,3,3,4,4,4-Heptafluorobutyl Chloroformate undergoes rigorous quality testing to ensure compliance with industry standards. Each batch is controlled via GC, NMR, and titration methods to verify identity, purity, and absence of critical impurities. Certificates of Analysis (COA) with lot-specific data are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to minimize decomposition and volatility. Due to its hygroscopic and moisture-sensitive nature, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acidity (as HCl)	≤ 1.0%

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