Description

4-Ethylbenzenesulfonamide is a versatile organic sulfonamide derivative, serving as a critical building block and intermediate in advanced chemical synthesis. Its value lies in its ability to impart specific functional properties, such as solubility modification and bioactivity, into more complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require high-purity intermediates for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring sulfonamide pharmacophores.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Polymer Modification: Acts as a monomer or additive to enhance the thermal stability and solubility properties of engineering plastics and resins.
• Dye and Pigment Manufacturing: Intermediate for producing sulfonamide-based dyes and colorants.
• Chemical Research & Development: A valuable reagent for organic synthesis and medicinal chemistry projects in R&D laboratories.
• Liquid Crystal Materials: Potential component in the synthesis of specialty materials for electronic displays.

Basic Information

Item	Detail
Product Name	4-Ethylbenzenesulfonamide
CAS No.	138-38-5
Molecular Formula	C8H11NO2S
Molecular Weight	185.24 g/mol
Synonyms	p-Ethylbenzenesulfonamide; Norsulfazole; 4-Ethylbenzene-1-sulfonamide; Benzenesulfonamide, 4-ethyl-; Ethylbenzenesulfonamide; 1-Ethyl-4-sulfamoylbenzene
EINECS	205-322-5

Quality Control

Our 4-Ethylbenzenesulfonamide is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring GMP-grade intermediates and research-grade chemicals.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	92 - 96 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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