Description

N-(4-Chlorophenyl)-p-Toluenesulfonamide is a specialized organic sulfonamide derivative, serving as a crucial synthetic intermediate in advanced chemical manufacturing. Its value lies in providing a versatile aromatic scaffold with both chlorophenyl and tosylamide functional groups, enabling precise molecular construction. This compound is essential for researchers and industrial chemists in the pharmaceutical and agrochemical sectors who require high-purity building blocks for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing antimicrobial properties.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, leveraging its chlorinated aromatic structure.
• Dye & Pigment Manufacturing: Serves as a precursor for synthesizing specialized azo dyes and colorants with enhanced lightfastness and chemical stability.
• Polymer Science: Acts as a monomer or additive in the creation of high-performance polymers, such as polyamides or resins, to modify thermal and mechanical properties.
• Chemical Research & Development: A valuable reagent in organic synthesis for constructing complex molecules, studying reaction mechanisms, and developing new catalytic processes.
• Material Science: Investigated for use in organic electronic materials, including charge-transport layers or as a component in molecular crystals.

Basic Information

Item	Detail
Product Name	N-(4-Chlorophenyl)-p-Toluenesulfonamide
CAS No.	2903-34-6
Molecular Formula	C13H12ClNO2S
Molecular Weight	281.76 g/mol
Synonyms	4-Chloro-N-(p-tolylsulfonyl)aniline; p-Toluenesulfonamide, N-(4-chlorophenyl)-; N-(4-Chlorophenyl)-4-methylbenzenesulfonamide; 4-Methyl-N-(4-chlorophenyl)benzenesulfonamide; 1-Chloro-4-[(4-methylphenyl)sulfonylamino]benzene; Tosyl-4-chloroaniline; 4-Chlorophenyl tosylamide
EINECS	220-829-5

Quality Control

Every batch of our N-(4-Chlorophenyl)-p-Toluenesulfonamide is produced under a strict quality management system. We employ advanced analytical techniques, including HPLC, GC, and NMR, to ensure identity, purity, and consistency meet the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical characteristics is provided with each shipment to guarantee full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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