Description

7,7'-Iminobis[4-Hydroxy-3-[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium] Salt is a high-purity, synthetic azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart vibrant and stable color properties in advanced formulations. It is primarily utilized by manufacturers in the dye and pigment industries, as well as in research and development for specialty chemical synthesis.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical building block for synthesizing high-performance, complex azo dyes, particularly for demanding applications.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Manufacturing: A key component in formulating specialty inks for packaging, security printing, and industrial marking.
• Plastics and Polymers Coloring: Employed in the creation of colorants for plastics, resins, and other polymeric materials.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Specialty Coatings: Finds application in producing colorants for paints, varnishes, and other coating systems requiring specific hue and stability.

Basic Information

Product Name	7,7'-Iminobis[4-Hydroxy-3-[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium] Salt
CAS No.	6535-60-0
Molecular Formula	C46H30N8Na2O12S2
Molecular Weight	996.86 g/mol
Synonyms	Acid Black 107; C.I. 15711; 7,7'-Iminobis[4-hydroxy-3-[2-(4-hydroxyphenyl)diazenyl]naphthalene-2-sulfonic acid] disodium salt; Disodium 7,7'-iminobis[4-hydroxy-3-[(4-hydroxyphenyl)azo]naphthalene-2-sulfonate]; Azo Dye Intermediate 6535-60-0; C.I. Acid Black 107; Sodium 7,7'-iminobis(4-hydroxy-3-[(4-hydroxyphenyl)azo]-2-naphthalenesulfonate)
EINECS	Contact for details

Quality Control

Our 7,7'-Iminobis[4-Hydroxy-3-[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium] Salt is produced under stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with agreed specifications. Comprehensive Certificates of Analysis (COA) detailing identity, assay, and impurity profiles 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 nature, protect from moisture and store under conditions of low humidity. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, alkaline solutions

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