Description

Sodium 4-[(4-Amino-2,5-Xylyl)Azo]-m-Xylene-5-Sulphonate is a specialized azo dye intermediate and chemical building block of significant industrial importance. Its value lies in its role as a precise chromophore precursor, enabling the synthesis of dyes and pigments with specific color properties and stability. This compound is essential for manufacturers and R&D laboratories in the colorant, textile, and specialty chemical industries seeking to develop or produce high-performance coloring agents.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key building block in the production of specialty colorants for inks, coatings, and plastics.
• Used in research and development of novel chromophores with tailored lightfastness and solubility properties.
• Potential precursor for biological stains and histochemical dyes in laboratory settings.
• Intermediate in the manufacture of functional dyes for non-textile applications, such as paper or leather.

Basic Information

Product Name	Sodium 4-[(4-Amino-2,5-Xylyl)Azo]-m-Xylene-5-Sulphonate
CAS No.	6970-21-4
Molecular Formula	C15H16N3NaO3S
Molecular Weight	341.36 g/mol
Synonyms	4-[(4-Amino-2,5-dimethylphenyl)azo]-2,5-dimethylbenzenesulfonic Acid Sodium Salt; Sodium 4-[(4-Amino-2,5-dimethylphenyl)azo]-2,5-dimethylbenzenesulfonate; 2,5-Dimethyl-4-[(2,5-dimethyl-4-sulfophenyl)azo]aniline Sodium Salt; Azo Dye Intermediate 6970-21-4; Benzenesulfonic acid, 4-[(4-amino-2,5-dimethylphenyl)azo]-2,5-dimethyl-, sodium salt; C.I. 11270; Acid Yellow 99 (related color index)
EINECS	Contact for details

Quality Control

Our production of Sodium 4-[(4-Amino-2,5-Xylyl)Azo]-m-Xylene-5-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee traceability and support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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