Description

1,5-Naphthalenedisulfonic acid,2-[[8-[[4-chloro-6-[[2-[[4-chloro-6-[[8-hydroxy-3,6-disulfo-7-[(2-sulfophenyl)azo]-1-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]ethyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-,potas is a high-purity, complex anionic azo dye intermediate. It is valued for its ability to impart strong, vibrant colors with excellent light and wash fastness properties. This compound is essential for manufacturers in the textile, leather, and specialty ink industries seeking to produce high-performance dyes and pigments.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton and cellulose fiber dyeing and printing.
• Leather Coloring Agent: Used in the formulation of dyes for leather finishing, providing deep, uniform color penetration.
• Specialty Ink Production: A critical component in manufacturing inks for jet printing, security inks, and other high-performance applications.
• Paper Dyeing: Employed in the production of dyes for coloring paper and paperboard.
• Research & Development: Serves as a standard or precursor in chemical research for developing new chromophores and functional dyes.

Basic Information

Product Name	1,5-Naphthalenedisulfonic acid,2-[[8-[[4-chloro-6-[[2-[[4-chloro-6-[[8-hydroxy-3,6-disulfo-7-[(2-sulfophenyl)azo]-1-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]ethyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-,potas
CAS No.	84041-86-1
Molecular Formula	C40H21Cl2K5N14O24S8 (Potassium salt form)
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 84041-86-1; C.I. Reactive Black 5 Intermediate; Potassium 1,5-Naphthalenedisulfonate azo dye derivative; Polyazo dye intermediate; Tetrasulfonated azo dye precursor; 2-[[8-[[4-Chloro-6-[[2-[[4-chloro-6-[[8-hydroxy-3,6-disulfo-7-[(2-sulfophenyl)azo]-1-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]ethyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-1,5-naphthalenedisulfonic acid, potassium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with each shipment to support your quality assurance protocols.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

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.