Description

2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-6-4-4-(4-Hydroxyphenyl)Azophenylamino-3-Sulfophenylazo-3-(4-Nitrophenyl)Azo- is a complex, high-purity synthetic dye intermediate. This compound is valued for its ability to impart specific, vibrant color properties and its role in creating advanced chromophores. It is primarily required by manufacturers in the specialty dyes and pigments industry, particularly for high-performance applications where color fastness and chemical stability are critical.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-grade azo dyes for textiles, leather, and paper.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments requiring specific hue and stability characteristics.
• Functional Dyes for Plastics and Polymers: Imparts color to engineering plastics and synthetic fibers where thermal and chemical resistance is needed.
• Research & Development: Employed in chemical R&D for developing new chromogenic materials and studying structure-property relationships.
• Ink Formulations: Potential use in high-performance inks, including those for digital printing and security applications.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-6-4-4-(4-Hydroxyphenyl)Azophenylamino-3-Sulfophenylazo-3-(4-Nitrophenyl)Azo-
CAS No.	135608-99-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	4-Amino-5-hydroxy-6-[4-[4-(4-hydroxyphenyl)azophenyl]amino-3-sulfophenyl]azo-3-(4-nitrophenyl)azo-2,7-naphthalenedisulfonic acid; C.I. Azoic Diazo Component; Complex Azo Dye Intermediate; 135608-99-0; Amino Hydroxy Nitro Azo Naphthalenedisulfonic Acid Derivative
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 2.0%
Sulfated Ash	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm

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