Description

2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Nitrobenzenamine And Resorcinol, Sodium Salts is a high-purity, complex synthetic dye intermediate essential for producing vibrant and stable azo dyes and pigments. This compound matters because it provides the critical chromophoric structure that imparts specific, durable colors to a wide range of industrial materials. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking consistent quality for their coloration processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key coupling component in the synthesis of high-performance azo dyes for textiles, leather, and paper.
• Pigment Manufacturing: Used in the production of organic pigments for printing inks, including flexographic and gravure inks.
• Industrial Coatings: Imparts color to coatings for plastics, synthetic fibers, and other polymer-based materials.
• Specialty Chemical Synthesis: Acts as a building block for more complex dye molecules requiring specific solubility and fastness properties.
• Research & Development: Utilized in labs for developing new colorants and studying dye chemistry and application techniques.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Nitrobenzenamine And Resorcinol, Sodium Salts
CAS No.	90432-07-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component 42; Azoic Coupling Component 42; 4-Amino-5-hydroxy-2,7-naphthalenedisulfonic acid, diazotized, coupled with diazotized 4-nitrobenzenamine and resorcinol, sodium salts; 90432-07-8; Azoic Coupling Component 42, sodium salt; C.I. 37545
EINECS	Contact for details

Quality Control

Our 2,7-Naphthalenedisulfonic Acid, 4-Amino-5-Hydroxy-, Diazotized, Coupled With Diazotized 4-Nitrobenzenamine And Resorcinol, Sodium Salts is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for colorant intermediates, including identity, purity, and impurity profile. Certificates of Analysis (COA) documenting these results are provided to guarantee batch-to-batch consistency and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Powder or crystalline solid
Color	Characteristic color (e.g., brown to dark red)
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Moisture (KF)	Max. 5.0%
Solubility	Soluble in water

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