Description

5-Methanesulfonyl-2-Methoxybenzene-1-Sulfonyl Chloride is a high-purity, multi-functional sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. Its reactive sulfonyl chloride group enables efficient sulfonamide and sulfonate ester formation, making it indispensable for constructing complex molecular architectures. This compound is primarily utilized by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Building block for developing new herbicides, fungicides, and insecticides with sulfonyl-containing active moieties.
• Material Science: Monomer or cross-linking agent for the production of specialty polymers and functional materials.
• Chemical Biology: Probe or linker molecule for protein labeling and bioconjugation studies due to its electrophilic reactivity.
• Custom Synthesis: Serves as a versatile starting material for contract research organizations (CROs) and fine chemical manufacturers.
• Dye & Pigment Industry: Intermediate in the synthesis of specialized sulfonated dyes and colorants.

Basic Information

Product Name	5-Methanesulfonyl-2-Methoxybenzene-1-Sulfonyl Chloride
CAS No.	885052-33-5
Molecular Formula	C9H9ClO5S2
Molecular Weight	296.75 g/mol
Synonyms	2-Methoxy-5-(methylsulfonyl)benzenesulfonyl chloride; 2-Methoxy-5-methanesulfonylbenzenesulfonyl chloride; 1-(Chlorosulfonyl)-2-methoxy-5-(methylsulfonyl)benzene; 5-Methylsulfonyl-2-methoxybenzenesulfonyl chloride; 885052-33-5; Methanesulfonyl-methoxybenzene sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 5-Methanesulfonyl-2-Methoxybenzene-1-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity. Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics 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 a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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