Description

3-[(4-Amino-2,5-Dimethylphenyl)Azo]Naphthalene-1,5-Disulphonic Acid is a specialized azo dye intermediate, valued for its ability to impart specific color properties and functional characteristics in advanced formulations. This compound is essential for manufacturers requiring high-purity, consistent intermediates to ensure the quality and performance of their final products. It is primarily utilized in the production of dyes and pigments for textiles, inks, and specialty chemical applications where precise color and chemical stability are critical.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textile coloration.
• Used in the manufacturing of specialty inks, including those for packaging and security printing.
• Employed in the production of colorants for plastics and polymers to achieve stable and vibrant hues.
• Acts as a functional component in the research and development of novel chromophores for advanced optical applications.
• Potential use in the formulation of analytical reagents and indicators in laboratory settings.
• Serves as a building block for high-performance pigments used in automotive and industrial coatings.

Basic Information

Product Name	3-[(4-Amino-2,5-Dimethylphenyl)Azo]Naphthalene-1,5-Disulphonic Acid
CAS No.	93982-52-6
Molecular Formula	C18H16N4O6S2
Molecular Weight	440.47 g/mol
Synonyms	1,5-Naphthalenedisulfonic acid, 3-[(4-amino-2,5-dimethylphenyl)azo]-; 3-[(4-Amino-2,5-dimethylphenyl)diazenyl]naphthalene-1,5-disulfonic acid; Acid Red 4B intermediate; Azo dye intermediate 93982-52-6; C.I. 18050 intermediate; 4-Amino-2,5-dimethylazobenzene-1,5-disulfonic acid; 1,5-Naphthalenedisulfonic acid, 3-[(4-amino-2,5-dimethylphenyl)azo]-, sodium salt (1:?)
EINECS	Contact for details

Quality Control

Our 3-[(4-Amino-2,5-Dimethylphenyl)Azo]Naphthalene-1,5-Disulphonic Acid is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your technical requirements.

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 sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%

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