Description

Tetrasodium 4-Amino-3,6-Bis[[5-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, reactive dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments, offering excellent color fastness and stability. It is primarily required by manufacturers in the textile, leather, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton, wool, and nylon fibers.
• Textile Industry: Used in the production of dyes that provide excellent wash and light fastness for textiles.
• Leather Coloring: Employed in the formulation of dyes for leather goods, ensuring deep, uniform coloration.
• Specialty Pigments: Serves as a precursor for creating complex organic pigments used in inks and coatings.
• Research & Development: Utilized in chemical R&D for developing new chromophores and functional dyes.
• Paper Dyeing: Applied in the manufacturing of dyes for high-grade, colored paper products.

Basic Information

Product Name	Tetrasodium 4-Amino-3,6-Bis[[5-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	85631-74-9
Molecular Formula	C40H22Cl2N16Na4O16S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 Tetrasodium Salt; C.I. Reactive Black 5; Remazol Black B; Tetrasodium 4-Amino-6-[4'-[4''-Amino-6''-chloro-1'',3'',5''-triazin-2''-yl]amino]-3-sulfophenylazo]-5-hydroxy-3-[(4'''-amino-6'''-chloro-1''',3''',5'''-triazin-2'''-yl)amino]-6-sulfonaphthalene-2,7-disulfonate; C.I. 20505; Lanasol Black B; Drimarene Black B; Sumifix Supra Black B
EINECS	Contact for details

Quality Control

Our Tetrasodium 4-Amino-3,6-Bis[[5-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-2,7-Disulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. A Certificate of Analysis (COA) detailing all quality parameters is provided with each shipment.

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 tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
pH (1% Solution)	6.0 - 8.0

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