Description

4-Ethyl-3-Nitrobenzenesulphonic Acid is a specialized aromatic sulfonic acid derivative that serves as a versatile intermediate in fine chemical synthesis. Its value lies in the strategic positioning of the nitro and ethyl groups on the benzene ring, which makes it a key building block for creating more complex molecules. This compound is primarily needed by manufacturers in the agrochemical and pharmaceutical industries for the development of active ingredients and dyes.

Application

• Agrochemical Intermediate: A crucial precursor in the synthesis of herbicides, pesticides, and plant growth regulators.
• Pharmaceutical Synthesis: Used as a building block for active pharmaceutical ingredients (APIs), particularly in molecules requiring a substituted benzenesulfonic acid moiety.
• Dye and Pigment Manufacturing: Serves as an intermediate in the production of azo dyes and other complex colorants.
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid groups into target molecular frameworks.
• Corrosion Inhibitor Formulation: Can be utilized in the development of specialty chemicals for industrial water treatment.
• Polymer Modification: Acts as a functional monomer or additive to impart specific properties like solubility or ionic character to polymers.

Basic Information

Product Name	4-Ethyl-3-Nitrobenzenesulphonic Acid
CAS No.	67892-48-2
Molecular Formula	C8H9NO5S
Molecular Weight	231.22 g/mol
Synonyms	3-Nitro-4-ethylbenzenesulfonic Acid; 4-Ethyl-3-nitrobenzenesulfonic Acid; Benzenesulfonic acid, 4-ethyl-3-nitro-; 1-Ethyl-2-nitro-4-sulfobenzene; 2-Nitro-4-ethylbenzenesulfonic Acid; 4-Ethyl-3-nitrobenzene-1-sulfonic acid
EINECS	Contact for details

Quality Control

Our 4-Ethyl-3-Nitrobenzenesulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing results from HPLC, IR, and titration methods is provided with every shipment to guarantee traceability and compliance.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%

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