Description

2-Methyl-5-Nitrobenzenesulfonyl 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 reagent, introducing the sulfonyl functional group to create compounds with tailored properties. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, where it is used to develop active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfonamide-based drugs, including diuretics, antibiotics, and protease inhibitors.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and pesticides that require a sulfonyl moiety for biological activity.
• Dyestuff and Pigment Manufacturing: Acts as an intermediate in creating sulfonated azo dyes and other specialty colorants.
• Polymer Chemistry: Employed in the modification of polymers and as a monomer for specialty resins.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D in exploring new sulfonylation reactions and creating novel molecular libraries.
• Liquid Crystal and Electronic Material Precursor: Used in the synthesis of sulfone-containing compounds for advanced material applications.

Basic Information

Product Name	2-Methyl-5-Nitrobenzenesulfonyl Chloride
CAS No.	121-02-8
Molecular Formula	C7H6ClNO4S
Molecular Weight	235.64 g/mol
Synonyms	5-Nitro-o-toluenesulfonyl chloride; 2-Methyl-5-nitrobenzenesulfonyl chloride; 5-Nitro-2-methylbenzenesulfonyl chloride; 2-Methyl-5-nitrobenzene-1-sulfonyl chloride; 5-Nitro-o-toluene sulfonyl chloride; 2-Methyl-5-nitrophenylsulfonyl chloride; NSC 403697
EINECS	204-438-3

Quality Control

Our 2-Methyl-5-Nitrobenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by IR and NMR spectroscopy, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing all specifications are available upon request 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). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed to prevent decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	88 - 92 °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.