Description

3-Chloro-5-(Pentafluorosulfur)Phenol is a specialized fluorinated phenolic compound, identified by CAS No. 1240257-43-5. This high-value intermediate is critical for introducing the unique pentafluorosulfur (SF5) group into advanced molecular architectures, enabling the development of materials with enhanced thermal stability and chemical resistance. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors for synthesizing novel active ingredients and high-performance polymers.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring the metabolically stable and lipophilic SF5 moiety.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides, fungicides, and insecticides where the SF5 group can improve bioactivity and environmental persistence.
• Advanced Material Precursor: Serves as a monomer or functionalization agent for high-performance polymers, liquid crystals, and electronic materials requiring exceptional thermal and chemical stability.
• Ligand and Catalyst Development: Employed in organometallic chemistry to create sophisticated ligands for catalysis, leveraging the strong electron-withdrawing nature of the SF5 group.
• Organic Synthesis Research: A valuable reagent in academic and industrial R&D for exploring new fluorination chemistry and constructing complex, fluorinated aromatic systems.

Basic Information

Product Name	3-Chloro-5-(Pentafluorosulfur)Phenol
CAS No.	1240257-43-5
Molecular Formula	C6H2ClF5OS
Molecular Weight	252.59 g/mol
Synonyms	3-Chloro-5-(pentafluoro-λ⁶-sulfanyl)phenol; Phenol, 3-chloro-5-(pentafluorosulfur)-; 3-Chloro-5-SF5-phenol; 5-Chloro-3-hydroxyphenylsulfur pentafluoride; (3-Chloro-5-hydroxyphenyl)sulfur pentafluoride
EINECS	Contact for details

Quality Control

Every batch of 3-Chloro-5-(Pentafluorosulfur)Phenol is produced and analyzed under strict quality management protocols. We ensure high purity and consistency through advanced analytical techniques including HPLC, GC-MS, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). 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. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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