Description

2-Nitro-p-Toluenesulphonyl Chloride is a versatile and reactive chemical intermediate characterized by its sulfonyl chloride functional group. This compound matters for its role as a key building block in the synthesis of more complex molecules, particularly in fine chemical and pharmaceutical manufacturing. Industries that require high-purity intermediates for research and production, such as agrochemicals, dyes, and active pharmaceutical ingredient (API) development, are the primary users of this material.

Application

• As a crucial intermediate in the synthesis of sulfonamide-based pharmaceuticals and agrochemicals.
• Used in the preparation of dyes, pigments, and other specialty colorants.
• Employed as a reagent in organic synthesis for the introduction of the tosyl (tosylate) protecting group.
• Acts as a key building block in the research and development of novel chemical entities.
• Utilized in the manufacturing of photographic chemicals and other light-sensitive materials.
• Applied in the synthesis of polymers and other advanced materials requiring specific functional groups.

Basic Information

Product Name	2-Nitro-p-Toluenesulphonyl Chloride
CAS No.	54090-41-4
Molecular Formula	C7H6ClNO4S
Molecular Weight	235.64 g/mol
Synonyms	2-Nitro-4-methylbenzenesulfonyl chloride; 4-Methyl-2-nitrobenzenesulfonyl chloride; p-Toluenesulfonyl chloride, 2-nitro-; 2-Nitro-p-toluenesulfonyl chloride; 2-Nitro-4-toluenesulfonyl chloride; 2-Nitro-4-methylphenylsulfonyl chloride; NSC 403119
EINECS	Contact for details

Quality Control

Our 2-Nitro-p-Toluenesulphonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for demanding synthesis applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at 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.

Specification

Item	Specification
Appearance	Light yellow to beige crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	68°C - 72°C
Loss on Drying	≤ 1.0%

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