Description

2-Chloro-5-Nitrotoluene-4-Sulphonic Acid is a key sulfonated aromatic intermediate characterized by its strong acidic nature and reactive nitro and chloro substituents. This compound is valued for its role in facilitating complex organic syntheses, particularly in the production of dyes, pigments, and specialized fine chemicals. It is primarily sought by manufacturers in the agrochemical, pharmaceutical, and specialty chemical industries for constructing advanced molecular architectures.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing azo dyes, acid dyes, and other complex colorants.
• Agrochemical Synthesis: Used in the manufacture of herbicides, fungicides, and other crop protection agents.
• Pharmaceutical Intermediate: Serves as a precursor in the synthesis of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Chemical Research & Development: Employed in organic synthesis for introducing sulfonic acid groups and for further functionalization reactions.
• Specialty Polymer Production: Can be utilized to create sulfonated polymers with specific ion-exchange or hydrophilic properties.

Basic Information

Product Name	2-Chloro-5-Nitrotoluene-4-Sulphonic Acid
CAS No.	6973-13-3
Molecular Formula	C7H6ClNO5S
Molecular Weight	251.64 g/mol
Synonyms	4-Chloro-3-nitrobenzenesulfonic acid; 2-Chloro-5-nitrobenzenesulfonic acid; 4-Chloro-3-nitrobenzenesulphonic acid; 2-Chloro-5-nitro-4-methylbenzenesulfonic acid; 5-Nitro-2-chlorotoluene-4-sulfonic acid; Toluene-4-sulfonic acid, 2-chloro-5-nitro-; Benzenesulfonic acid, 4-chloro-3-nitro-
EINECS	230-190-2

Quality Control

Our 2-Chloro-5-Nitrotoluene-4-Sulphonic Acid is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

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 tightly sealed to prevent absorption of atmospheric moisture. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%

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