Description

2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Aminobenzenesulfonic Acid, Diazotized Aniline And Resorcinol is a complex, multi-component azo dye intermediate, synthesized through sequential diazotization and coupling reactions. This compound matters as a critical precursor for producing high-value, specialized dyes and pigments with specific color properties and application performance. It is primarily needed by manufacturers in the textile, leather, ink, and specialty chemical industries seeking to develop vibrant and durable colorants.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as the essential chemical backbone for synthesizing a range of orange, red, and brown azo colorants.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, including cotton, wool, and polyamide.
• Leather Finishing: A key component in formulating dyes for achieving consistent and deep coloration in leather goods.
• Ink Manufacturing: Employed in the synthesis of pigments for printing inks, requiring good stability and color strength.
• Paper Coloring: Utilized in the manufacture of dyes for specialty paper products.
• Research & Development: Acts as a building block for chemists developing novel dye structures with enhanced lightfastness or solubility properties.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Aminobenzenesulfonic Acid, Diazotized Aniline And Resorcinol
CAS No.	90432-04-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component; Diazotized 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid coupled component; Azo dye intermediate 90432-04-5; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized, coupled with diazotized 4-aminobenzenesulfonic acid, diazotized aniline and resorcinol; Complex Azo Coupling Salt; Multi-component diazo coupling product
EINECS	Contact for details

Quality Control

Our 2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Aminobenzenesulfonic Acid, Diazotized Aniline And Resorcinol is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent composition, purity, and performance as a dye intermediate. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Recommended storage temperature is 15-25°C. Keep container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Powder or crystalline solid
Color	Characteristic (e.g., dark brown to reddish)
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 90% (Main component)
Moisture Content	≤ 5.0%
Solubility	Soluble in water (test)

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