Description

7-Amino-6'-[(4-Aminophenyl)Azo]-1,5'-Dihydroxy-[2,2'-Azobisnaphthalene]-3,7'-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulfonic acid groups and azo linkages, makes it a critical precursor for synthesizing high-value, colorfast dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors who require a reliable and consistent raw material for producing vibrant and stable colors.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid dyes, direct dyes, and reactive dyes used for coloring wool, silk, nylon, and paper.
• Textile Industry: Used in the production of dyes that offer excellent wash and light fastness on natural and synthetic fibers.
• Ink Manufacturing: Employed in the formulation of high-performance inks for packaging, printing, and specialty applications.
• Pigment Synthesis: Acts as a precursor for creating lake pigments and other colorants used in paints, plastics, and coatings.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying azo dye chemistry.
• Biological Staining: Potential use as an intermediate for synthesizing stains used in histology and microscopy.

Basic Information

Product Name	7-Amino-6'-[(4-Aminophenyl)Azo]-1,5'-Dihydroxy-[2,2'-Azobisnaphthalene]-3,7'-Disulfonic Acid Disodium Salt
CAS No.	6483-66-5
Molecular Formula	C32H22N6O10S2·2Na
Molecular Weight	764.66 g/mol
Synonyms	Acid Black 107; C.I. 15710; 7-Amino-1,5-dihydroxy-6'-[(4-aminophenyl)azo]-3,7'-disulfonato-[2,2'-azonaphthalene] disodium salt; 1,5-Dihydroxy-7-amino-6'-[(4-aminophenyl)azo]-3,7'-disulfonato-[2,2'-azonaphthalene] disodium salt; [2,2'-Azobis[5-amino-7-sulfo-1-naphthol]] disodium salt; Azo dye intermediate 6483-66-5; Direct Black 107 intermediate
EINECS	Contact for details

Quality Control

Our production of 7-Amino-6'-[(4-Aminophenyl)Azo]-1,5'-Dihydroxy-[2,2'-Azobisnaphthalene]-3,7'-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting purity, impurity profile, and physical characteristics are available upon request 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 room temperature (15-25°C). This compound is moisture-sensitive (hygroscopic); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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