Description

4-Methoxy-3-Nitrobenzenesulphonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to act as a sulfonylation agent, facilitating the introduction of the sulfonyl functional group to create novel compounds with specific properties. This intermediate is essential for research and production in the pharmaceutical and agrochemical industries, where it is used to develop active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including diuretics, antibacterial agents, and protease inhibitors.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and plant growth regulators that require a sulfonyl moiety for bioactivity.
• Dyestuff and Pigment Production: Acts as an intermediate for creating sulfonated azo dyes and other specialty colorants.
• Polymer Chemistry: Employed in the modification of polymers and the synthesis of specialty monomers to impart specific chemical resistance or solubility.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and creating compound libraries.
• Liquid Crystal and Electronic Material Synthesis: Used in the production of advanced materials for display technologies and organic electronics.

Basic Information

Product Name	4-Methoxy-3-Nitrobenzenesulphonyl Chloride
CAS No.	22117-79-9
Molecular Formula	C7H6ClNO5S
Molecular Weight	251.64 g/mol
Synonyms	3-Nitro-4-methoxybenzenesulfonyl chloride; 4-Methoxy-3-nitrobenzene-1-sulfonyl chloride; 1-Methoxy-2-nitro-4-(chlorosulfonyl)benzene; 3-Nitro-p-anisylsulfonyl chloride; 4-Methoxy-3-nitrobenzenesulfonic acid chloride; NSC 403119; 4-Methoxy-3-nitro-phenylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards for purity and consistency. Each batch is analyzed using advanced techniques such as HPLC, GC, and NMR to verify identity and quantify impurities. Certificates of Analysis (COA) documenting all critical parameters are available upon request, providing full traceability and supporting your quality assurance protocols.

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 to prevent degradation from atmospheric moisture. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and amines.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	92 - 96 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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