Description

4,6-Diaminotoluene-3-Sulphonic Acid is a key aromatic sulfonic acid derivative, serving as a vital intermediate in the synthesis of complex organic molecules. Its value lies in its bifunctional nature, providing both amino and sulfonic acid groups for further chemical transformations, which is essential for creating high-performance colorants and specialty chemicals. This compound is primarily needed by manufacturers in the dye and pigment, pharmaceutical, and agrochemical industries for producing azo dyes, optical brighteners, and active pharmaceutical ingredients (APIs).

Application

• Primary intermediate for the synthesis of azo dyes and pigments, particularly for textile and leather coloring.
• Key building block in the production of optical brightening agents (OBAs) used in paper, detergent, and textile industries.
• Precursor for pharmaceutical intermediates and active ingredients in medicinal chemistry.
• Used in the synthesis of agrochemicals, such as herbicides and pesticides.
• Intermediate for specialty chemicals and functional polymers.
• Research and development applications in organic synthesis and material science.

Basic Information

Product Name	4,6-Diaminotoluene-3-Sulphonic Acid
CAS No.	88-52-8
Molecular Formula	C7H10N2O3S
Molecular Weight	202.23 g/mol
Synonyms	2,4-Diamino-5-methylbenzenesulfonic Acid; 2,4-Diaminotoluene-5-sulfonic Acid; 5-Methyl-2,4-diaminobenzenesulfonic Acid; 4,6-Diaminotoluene-3-sulfonic Acid; 2,4-Diaminotoluene-5-sulphonic Acid; Toluene-3-sulfonic acid, 4,6-diamino-; 88-52-8; 4,6-Diaminotoluene-3-Sulfonic Acid
EINECS	201-837-4

Quality Control

Our 4,6-Diaminotoluene-3-Sulphonic Acid is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment aligns with ISO standards and relevant industrial chemical specifications to meet the rigorous demands of our global B2B clients.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light brown crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (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.