Description

4,6-Diaminotoluene-2-Sulphonic Acid is a specialized aromatic sulfonic acid derivative that serves as a critical intermediate in advanced chemical synthesis. Its value lies in its bifunctional diamine and sulfonic acid groups, enabling its use in the production of high-performance dyes and pigments. This compound is essential for manufacturers in the dyestuff, pharmaceutical, and agrochemical industries seeking to develop products with specific color fastness and chemical reactivity.

Application

• Primary Intermediate for Azo Dyes and Pigments: Acts as a key diazo component in the synthesis of high-value, complex azo colorants for textiles, inks, and plastics.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Synthesis: Serves as a building block for certain herbicides, fungicides, and plant growth regulators.
• Corrosion Inhibitor Formulation: Incorporated into specialty chemical formulations for metal surface treatment and protection.
• Research & Development: Utilized in academic and industrial R&D labs for novel material science and organic chemistry projects.
• Polymer Modification: Can be used to introduce sulfonic acid groups into polymers to alter solubility or ionic characteristics.

Basic Information

Product Name	4,6-Diaminotoluene-2-Sulphonic Acid
CAS No.	85153-45-3
Molecular Formula	C7H10N2O3S
Molecular Weight	202.23 g/mol
Synonyms	2-Sulfo-4,6-diaminotoluene; 4,6-Diamino-2-methylbenzenesulfonic Acid; 2-Methyl-1,3-diaminobenzene-5-sulfonic Acid; 4,6-Diaminotoluene-2-sulfonic Acid; Toluene-2-sulfonic acid, 4,6-diamino-; 4,6-Diamino-o-toluenesulfonic Acid; 4,6-Diaminotoluene-2-Sulphonate
EINECS	Contact for details

Quality Control

Our 4,6-Diaminotoluene-2-Sulphonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and impurity profiles. A comprehensive Certificate of Analysis (COA) documenting results from HPLC, IR, and titration methods is provided with each shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

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)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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