Description

Ammonium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-(Phenylazo)Naphthalene-1-Sulphonate] is a high-purity, synthetic azo dye intermediate with significant industrial utility. Its precise molecular structure makes it a critical component for producing vivid and stable colorants. This compound is essential for manufacturers in the dye and pigment industries seeking consistent quality for advanced applications.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance red, orange, and brown azo dyes and pigments.
• Textile Dyeing: Used in the manufacturing of dyes for coloring natural and synthetic fibers, including cotton, wool, and nylon.
• Ink Formulation: Employed in the production of industrial and printing inks to achieve specific color shades and stability.
• Pigment Production: Acts as a precursor for creating organic pigments used in plastics, paints, and coatings.
• Laboratory Research: Utilized as a standard or reagent in chemical research and development for novel chromophores.
• Specialty Colorants: Potential applications in the development of colorants for specialty papers and leather.

Basic Information

Product Name	Ammonium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-(Phenylazo)Naphthalene-1-Sulphonate]
CAS No.	83232-34-2
Molecular Formula	C34H24N6Na2O10S2 • xNH4
Molecular Weight	Contact for details
Synonyms	7,7'-(Carbonyldiimino)bis[4-hydroxy-3-(phenylazo)naphthalene-1-sulfonic acid], ammonium sodium salt; Azo dye intermediate 83232-34-2; CI 27290 (related); Acid Red 404 (related); Ammonium sodium bis(azo) naphthalene sulfonate; 1-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis[4-hydroxy-3-(2-phenyldiazenyl)-, ammonium sodium salt
EINECS	Contact for details

Quality Control

Our Ammonium Sodium 7,7'-(Carbonyldiimino)Bis[4-Hydroxy-3-(Phenylazo)Naphthalene-1-Sulphonate] is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial dye synthesis. Certificates of Analysis (COA) detailing specific batch results are available upon request.

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)	Min. 95%
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Solubility	Soluble in water; slightly soluble in organic solvents

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