Description

1,5-Naphthalenedisulfonic acid, 2-8-4-chloro-6-3-4-chloro-6-7-(1,5-disulfo-2-naphthalenyl)azo-8-hydroxy-3,6-disulfo-1-naphthalenylamino-1,3,5-triazin-2-ylaminomethylphenylamino-1,3,5-triazin-2-ylamino-1-hydroxy-3,6-disulfo-2-naphthalenylamino-, sodium salt is a high-purity, complex polyazo dye intermediate and functional chemical. This compound is valued for its ability to impart specific colorant properties and act as a key building block in the synthesis of advanced dyes and pigments. It is primarily needed by manufacturers in the specialty chemicals sector, particularly those producing high-performance dyes for textiles, inks, and advanced materials.

Application

• Primary Intermediate for Reactive Dyes: A critical precursor in the synthesis of high-grade reactive dyes for cotton and cellulose fiber dyeing.
• Manufacture of Polyazo Pigments: Used in the production of complex, high-chroma pigments for industrial inks and coatings.
• Functional Dye Synthesis: Serves as a key component in creating specialized dyes for leather, paper, and specialty applications.
• Research & Development: Employed in R&D laboratories for developing novel chromophores and colorant molecules with specific light-fastness and wash-fastness properties.
• Textile Chemical Production: Integral to formulating advanced dyeing auxiliaries and color-fixing agents.

Basic Information

Item	Detail
Product Name	1,5-Naphthalenedisulfonic acid, 2-8-4-chloro-6-3-4-chloro-6-7-(1,5-disulfo-2-naphthalenyl)azo-8-hydroxy-3,6-disulfo-1-naphthalenylamino-1,3,5-triazin-2-ylaminomethylphenylamino-1,3,5-triazin-2-ylamino-1-hydroxy-3,6-disulfo-2-naphthalenylamino-, sodium salt
CAS No.	142068-96-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Black 5 (key intermediate); Polyazo naphthalene trisulfonate derivative; Sodium 4-amino-5-hydroxy-3,6-disulfo-2-naphthylazo-4'-(-4-chloro-6-(3-((4-chloro-6-(7-(1,5-disulfo-2-naphthylazo)-8-hydroxy-3,6-disulfo-1-naphthylamino)-1,3,5-triazin-2-ylamino)methyl)phenylamino)-1,3,5-triazin-2-ylamino)-1,5-naphthalenedisulfonate; Reactive Dye Intermediate; Black 5 precursor; Complex azo dye salt; Tetrasulfonated azo-triazine compound
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and sulfonate content are provided with each shipment.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90% (or as per customer grade)
Moisture Content	Max. 5.0%
Solubility (in Water)	Completely soluble
Sulfonate Group Content	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm

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