Description

6'-Amino-1'-Hydroxy-4-[(5-Hydroxy-7-Sodiosulfo-1-Naphthalenyl)Azo][1,2'-Azobisnaphthalene]-3',7-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate with a complex polycyclic structure. This compound is valued for its ability to impart specific color properties and act as a key building block in the synthesis of advanced dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant, stable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a critical precursor in the synthesis of high-performance, polyazo direct and reactive dyes for cotton and other cellulosic fibers.
• Textile Dye Manufacturing: Used to produce dyes that offer excellent wash-fastness and light-fastness properties for the textile industry.
• Inkjet and Printing Inks: Employed in the formulation of specialized inks where precise color strength and solubility are paramount.
• Liquid Crystal Display (LCD) Color Filters: Potential application in the production of colorants for electronic display technologies.
• Biological Staining Reagents: Can be utilized in the development of histological stains for microscopy, leveraging its chromophoric structure.
• Research & Development: Acts as a standard or reagent in chemical research focused on dye chemistry, photochemistry, and material science.

Basic Information

Item	Detail
Product Name	6'-Amino-1'-Hydroxy-4-[(5-Hydroxy-7-Sodiosulfo-1-Naphthalenyl)Azo][1,2'-Azobisnaphthalene]-3',7-Disulfonic Acid Disodium Salt
CAS No.	6492-59-7
Molecular Formula	C₃₀H₁₈N₄Na₂O₁₂S₃
Molecular Weight	800.62 g/mol
Synonyms	Acid Black 107; C.I. 18110; 6'-Amino-1'-hydroxy-4-[(5-hydroxy-7-sulfo-1-naphthyl)azo][1,2'-azobisnaphthalene]-3',7-disulfonic acid disodium salt; 1,2'-Azobis[6-amino-4-hydroxy-3-[(5-hydroxy-7-sulfo-1-naphthyl)azo]-2,7-naphthalenedisulfonic acid] tetrasodium salt (related); Direct Black 107; Azo Black 107; C.I. Acid Black 107; Disodium 6-amino-1-hydroxy-4-[(5-hydroxy-7-sulphonato-1-naphthyl)azo]-1,2'-azonaphthalene-3',7-disulphonate
EINECS	229-363-5

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is tested against established specifications for identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity (typically >95% by HPLC), sulfonate content, and heavy metal limits is provided with each shipment to support your quality assurance processes.

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 nature, the container must be kept sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfonate Group Content	Contact for details
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.