Description

5-Chloro-4-Ethyl-2-Nitrobenzenesulphonic Acid is a specialized nitroaromatic sulfonic acid derivative that serves as a critical synthetic intermediate in advanced chemical manufacturing. Its unique substitution pattern makes it a valuable building block for constructing complex molecules with specific electronic and steric properties. This compound is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty dye sectors for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for compounds requiring a substituted benzenesulfonic acid moiety.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators where the nitro and sulphonic acid groups impart specific biological activity.
• Dye and Pigment Manufacturing: Acts as an intermediate for creating azo dyes and other complex colorants, contributing to color fastness and solubility properties.
• Chemical Research & Development: Serves as a versatile scaffold in medicinal chemistry and material science research for structure-activity relationship (SAR) studies.
• Ligand and Catalyst Preparation: Utilized in the development of specialized ligands for metal catalysis and in the synthesis of functionalized polymers.

Basic Information

Product Name	5-Chloro-4-Ethyl-2-Nitrobenzenesulphonic Acid
CAS No.	67892-44-8
Molecular Formula	C8H8ClNO5S
Molecular Weight	265.67 g/mol
Synonyms	5-Chloro-4-ethyl-2-nitrobenzenesulfonic acid; 2-Nitro-5-chloro-4-ethylbenzenesulfonic acid; Benzenesulfonic acid, 5-chloro-4-ethyl-2-nitro-; 4-Ethyl-5-chloro-2-nitrobenzenesulfonic acid; 67892-44-8; 5-Chloro-4-ethyl-2-nitrobenzene-1-sulfonic acid
EINECS	Contact for details

Quality Control

Our 5-Chloro-4-Ethyl-2-Nitrobenzenesulphonic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and industrial use. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases, reducing agents, and sources of ignition. Due to its nitroaromatic and acidic nature, appropriate chemical storage cabinets are recommended.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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