Description

2-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]Benzene-1,4-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart strong, vibrant color properties in advanced dye synthesis. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance dyes and pigments. Consistent quality and reliable supply are critical for ensuring batch-to-batch color uniformity in final products.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-molecular-weight azo dyes for textiles and fibers.
• Textile Dyeing and Printing: Used in the manufacturing of dyes applied to cotton, wool, silk, and nylon, offering good wash and light fastness.
• Inkjet and Printing Inks: A crucial component in the production of colorants for high-quality industrial and digital printing inks.
• Pigment Manufacturing: Employed in the creation of organic pigments used in plastics, paints, and coatings.
• Leather Dyeing: Utilized in the formulation of dyes for coloring leather goods.
• Paper Coloring: Applied in the production of dyes for specialty paper products.
• Research & Development: Serves as a standard or reagent in chemical research for developing new chromophores and functional materials.

Basic Information

Item	Details
Product Name	2-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]Benzene-1,4-Disulfonic Acid Disodium Salt
CAS No.	6388-27-8
Molecular Formula	C40H24N6Na4O16S4
Molecular Weight	1084.88 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 2-[[4-[[4-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]-6-sulphonato-1-naphthyl]azo]benzene-1,4-disulphonate; 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, sodium salt (1:4); Azo Dye Intermediate 6388-27-8
EINECS	Contact for details

Quality Control

Our 2-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]Benzene-1,4-Disulfonic Acid Disodium Salt is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your quality standards.

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). Keep away from incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Sulfated Ash	20.0% - 30.0%
Heavy Metals (as Pb)	Max. 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.