Description

3-Amino-6-Nitrotoluene-4-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 structure, containing both an amino and a nitro group on the toluene backbone, which makes it a versatile building block for creating colorants and specialty chemicals. This compound is essential for manufacturers in the dye and pigment industry, as well as for research institutions developing advanced materials and pharmaceutical intermediates.

Application

• Primary Intermediate for Dyes and Pigments: A crucial precursor in the synthesis of azo dyes, acid dyes, and other complex colorants.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Specialty Chemical Synthesis: Serves as a building block for creating corrosion inhibitors, optical brighteners, and other functional chemicals.
• Research & Development: Employed in academic and industrial labs for organic synthesis and material science projects.
• Agrochemical Intermediates: Potential use in the synthesis of certain herbicides and plant growth regulators.

Basic Information

Product Name	3-Amino-6-Nitrotoluene-4-Sulphonic Acid
CAS No.	41521-55-5
Molecular Formula	C7H8N2O5S
Molecular Weight	232.21 g/mol
Synonyms	3-Amino-6-nitrotoluene-4-sulfonic acid; 2-Amino-5-methyl-4-nitrobenzenesulfonic acid; 4-Amino-2-methyl-5-nitrobenzenesulfonic acid; 6-Nitro-m-toluidine-4-sulfonic acid; 3-Amino-6-nitro-p-toluenesulfonic acid; 4-Methyl-6-nitro-3-aminobenzenesulfonic acid; ANSA; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our 3-Amino-6-Nitrotoluene-4-Sulphonic Acid is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity and performance, meeting the high standards required for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each 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). This material is hygroscopic (moisture-sensitive) and should be kept away from strong acids and organic solvents. Keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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