Description

6-Amino-1,5'-Dihydroxy-6'-[(5-Hydroxy-7-Sodiosulfo-2-Naphthalenyl)Azo][2,2'-Azobisnaphthalene]-3,7'-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its complex polyaromatic structure and multiple sulfonate groups. This compound matters for its role as a critical precursor in the synthesis of specialized dyes and pigments, offering excellent chromophore properties and solubility for demanding applications. Industrial manufacturers in the textile, ink, and specialty chemical sectors require this material for producing vivid, stable colors and for advanced research in functional dyes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance acid dyes and direct dyes for textiles like nylon, silk, and wool.
• Specialty Ink Formulations: Used in the production of inks for jet printing, packaging, and security applications requiring specific lightfastness and solubility.
• Functional Dye Research: A valuable compound for R&D in developing novel dyes with specific properties for optical data storage, sensors, or liquid crystal displays (LCDs).
• Biological Staining Agent: Potential use in the preparation of histological stains for microscopy, leveraging its chromophoric structure.
• Catalyst and Ligand Synthesis: The azo and sulfonate groups can be utilized to create complexing agents or ligands for metal catalysis.
• Analytical Chemistry Reagent: May be employed as a colorimetric indicator or a standard in analytical methods due to its defined structure.

Basic Information

Product Name	6-Amino-1,5'-Dihydroxy-6'-[(5-Hydroxy-7-Sodiosulfo-2-Naphthalenyl)Azo][2,2'-Azobisnaphthalene]-3,7'-Disulfonic Acid Disodium Salt
CAS No.	6471-72-3
Molecular Formula	C₃₄H₂₀N₆Na₂O₁₄S₄
Molecular Weight	942.78 g/mol
Synonyms	Acid Black 107; C.I. 26370; 2,7-Naphthalenedisulfonic acid, 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-5-[[4-sulfophenyl]azo]-, sodium salt (1:?); Disodium 6-amino-4-hydroxy-3-[[7-sulfo-4-[(4-sulfophenyl)azo]-1-naphthalenyl]azo]-5-[[4-sulfophenyl]azo]-2,7-naphthalenedisulfonate; Azo Black Dye Intermediate; Tetrasulfonated Azo Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity for sensitive synthesis processes. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify critical parameters. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

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
Water Solubility	Freely soluble

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