Description

4-Aminotoluene-2,5-Disulfonicacid is a key aromatic sulfonic acid derivative, serving as a versatile and critical intermediate in advanced organic synthesis. Its value lies in its bifunctional structure, containing both an amine and sulfonic acid groups, which makes it a valuable building block for creating complex molecules with specific properties. This compound is primarily needed by manufacturers in the dye and pigment, pharmaceutical, and specialty chemical industries for the production of high-performance materials.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of acid dyes, reactive dyes, and optical brighteners, particularly for textiles and paper.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Liquid Crystal & Electronic Chemicals: Serves as a monomer or intermediate in the production of specialty polymers and materials for electronic applications.
• Corrosion Inhibitor Formulation: Employed in the development of advanced corrosion inhibitors for industrial water treatment and metalworking fluids.
• Chemical Research & Development: Used in organic synthesis laboratories for developing novel compounds and conducting process chemistry studies.
• Surfactant and Dispersant Agent: Acts as an intermediate for producing sulfonated surfactants with specific solubility and surface activity properties.

Basic Information

Product Name	4-Aminotoluene-2,5-Disulfonicacid
CAS No.	121315-23-9
Molecular Formula	C7H9NO6S2
Molecular Weight	267.28 g/mol
Synonyms	2,5-Disulfo-p-toluidine; 4-Amino-2,5-disulfobenzoic Acid (tautomeric form); 4-Methyl-3,6-disulfoaniline; 2-Amino-5-methyl-1,3-benzenedisulfonic acid; p-Toluidine-2,5-disulfonic acid; 3-Amino-6-methylbenzene-1,4-disulfonic acid; 4-Amino-1-methylbenzene-2,5-disulfonic acid
EINECS	Contact for details

Quality Control

Our 4-Aminotoluene-2,5-Disulfonicacid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and support your quality assurance protocols.

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 and strong bases. Due to its sulfonic acid nature, the material may be hygroscopic; ensure containers are sealed after use to minimize moisture absorption.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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