Description

2-Nitro-α-Toluenesulfonyl Chloride 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, the sulfonyl chloride and nitro groups, which enable its use as a versatile intermediate for constructing complex molecules. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Dyestuff and Pigment Manufacturing: Serves as an intermediate for creating azo dyes and other complex colorants.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the production of specialty polymers and resins.
• Chemical Research & Development: A valuable reagent for exploring new synthetic pathways and creating novel chemical entities.
• Ligand and Catalyst Preparation: Used to synthesize specialized ligands for metal complexes and catalytic systems.

Basic Information

Product Name	2-Nitro-α-Toluenesulfonyl Chloride
CAS No.	24974-75-2
Molecular Formula	C7H6ClNO4S
Molecular Weight	235.64 g/mol
Synonyms	2-Nitrobenzenesulfonyl Chloride; o-Nitrobenzenesulfonyl Chloride; 2-Nitrobenzene-1-sulfonyl Chloride; ONBS; ONsCl; o-Nitrobenzene-1-sulfonyl Chloride; 2-Nitrobenzenesulphonyl Chloride; 1-Chlorosulfonyl-2-nitrobenzene
EINECS	Contact for details

Quality Control

Our 2-Nitro-α-Toluenesulfonyl Chloride is produced under stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request, supporting compliance with research and manufacturing standards.

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 nature, the container must be kept tightly sealed to exclude moisture. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	64 - 68 °C
Water Content (KF)	≤ 0.5%

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