Description

Benzenesulfonyl Chloride, 3-Fluoro-4-Methoxy- (9Ci) is a high-purity, multi-functional chemical intermediate designed for advanced synthesis. This compound is valued for its reactive sulfonyl chloride group and strategically placed fluorine and methoxy substituents, enabling precise molecular modifications. It is essential for researchers and manufacturers in the pharmaceutical and agrochemical sectors developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfonamide-based drugs.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and insecticides where the fluorine and methoxy groups confer specific biological activity.
• Material Science Research: Serves as a precursor for functionalized polymers and advanced materials requiring specific surface properties.
• Dye and Pigment Manufacturing: Intermediate in the production of specialized dyes and colorants.
• Chemical Biology Probes: Utilized in the development of molecular probes and labeling reagents for biochemical research.
• Custom Synthesis: A versatile starting material for contract research organizations (CROs) and CDMOs performing bespoke chemical synthesis.

Basic Information

Product Name	Benzenesulfonyl Chloride, 3-Fluoro-4-Methoxy- (9Ci)
CAS No.	67475-55-2
Molecular Formula	C7H6ClFO3S
Molecular Weight	224.64 g/mol
Synonyms	3-Fluoro-4-methoxybenzenesulfonyl chloride; 1-Fluoro-2-methoxy-4-(chlorosulfonyl)benzene; 4-Chlorosulfonyl-2-fluoroanisole; 2-Fluoro-4-methoxybenzenesulfonyl chloride; 3-Fluoro-4-methoxybenzene-1-sulfonyl chloride; 3-Fluoro-p-anisylsulfonyl chloride; 67475-55-2 (CAS)
EINECS	Contact for details

Quality Control

Our Benzenesulfonyl Chloride, 3-Fluoro-4-Methoxy- (9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistency. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every shipment to support your quality assurance and regulatory compliance needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (GC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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