Description

Benzenesulfonyl Chloride, 5-Fluoro-2-Methoxy- (9Ci) is a specialized aromatic sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its dual reactive sites, enabling its use as a versatile sulfonylation and coupling reagent for introducing the 5-fluoro-2-methoxybenzenesulfonyl moiety. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly in the development of active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in creating novel herbicides and fungicides with enhanced activity and selectivity.
• Chemical Research & Development: A valuable reagent for constructing complex molecular architectures in medicinal and process chemistry.
• Material Science: Potential monomer or modifier in the synthesis of specialty polymers and functional materials.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific target molecules.

Basic Information

Product Name	Benzenesulfonyl Chloride, 5-Fluoro-2-Methoxy- (9Ci)
CAS No.	67475-56-3
Molecular Formula	C7H6ClFO3S
Molecular Weight	224.64 g/mol
Synonyms	5-Fluoro-2-methoxybenzenesulfonyl chloride; 2-Methoxy-5-fluorobenzenesulfonyl chloride; 1-Fluoro-4-methoxy-3-sulfonylchloridobenzene; 3-Fluoro-6-methoxybenzenesulfonyl chloride; 67475-56-3; 5-Fluoro-2-methoxybenzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our Benzenesulfonyl Chloride, 5-Fluoro-2-Methoxy- (9Ci) is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Water Content (KF)	≤ 0.5%

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