Description

2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol monosodium salt, diazotized 4-amino-3-methylbenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol is a complex, multi-component azo dye intermediate synthesized through sequential diazotization and coupling reactions. This compound is engineered to provide a specific chromophore structure, making it a critical precursor for producing high-performance dyes and pigments. It is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop products with enhanced color strength and specific application properties.

Application

• Primary Intermediate for Azo Dyes and Pigments: Serves as a key building block in the synthesis of complex, high-value azo colorants.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, particularly where deep, vibrant shades are required.
• Inkjet and Printing Ink Formulations: Imparts specific color characteristics and stability in advanced digital and industrial printing inks.
• Specialty Coatings and Paints: Employed in creating pigments for automotive, industrial, and decorative coatings that demand durability.
• Research and Development: Utilized in chemical R&D for developing novel chromophores and studying structure-property relationships in color chemistry.
• Functional Dyes: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or laser dyes.

Basic Information

Product Name	2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol monosodium salt, diazotized 4-amino-3-methylbenzenesulfonic acid, diazotized 4-nitrobenzenamine and resorcinol
CAS No.	71486-83-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component; Complex Azo Dye Intermediate; Diazotized Naphthalenedisulfonic Acid Coupling Product; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol sodium salt, diazotized 4-amino-3-methylbenzenesulfonic acid, diazotized 4-nitroaniline and resorcinol; Multi-component Azo Coupling Product; Azo Dye Precursor 71486-83-4
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through analytical methods including HPLC, spectrophotometry, and wet chemical tests to confirm identity, purity, and absence of critical impurities. A Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95% (or as per grade)
Moisture Content	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility Test	Characteristic in specified solvents

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