Description

2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-2-(ethenylsulfonyl)ethoxyethylamino-1,3,5-triazin-2-ylamino-4-hydroxy-3-(1-sulfo-2-naphthalenyl)azo-, trisodium salt is a high-performance, reactive dye intermediate and specialty chemical. This compound is engineered to provide exceptional color fastness and reactivity, making it a critical component for creating durable and vibrant dyes. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries seeking advanced chromophores for high-quality applications.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes used in cotton, wool, and nylon dyeing.
• Textile Coloration: Imparts excellent wash and light fastness properties to dyed fabrics and fibers.
• Leather Finishing: Used in the production of dyes for high-quality leather goods, ensuring deep, uniform color penetration.
• Inkjet Inks: Serves as a colorant precursor in the formulation of specialty inks for digital textile printing.
• Paper Dyeing: Employed in the coloration of specialty papers requiring high color stability.
• Research & Development: Used as a standard or building block in chemical research for developing new chromophores and functional dyes.

Basic Information

Item	Details
Product Name	2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-2-(ethenylsulfonyl)ethoxyethylamino-1,3,5-triazin-2-ylamino-4-hydroxy-3-(1-sulfo-2-naphthalenyl)azo-, trisodium salt
CAS No.	259795-03-4
Molecular Formula	C35H28ClN8Na3O16S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 analogue; Trisodium 5-{[4-chloro-6-({2-[2-(ethenylsulfonyl)ethoxy]ethyl}amino)-1,3,5-triazin-2-yl]amino}-4-hydroxy-3-[(1-sulfo-2-naphthyl)azo]naphthalene-2,7-disulfonate; Azo dye intermediate containing vinyl sulfone and triazine groups; C.I. Reactive Black 5 related compound; Vinylsulfone reactive dye precursor; Triazine-based disazo dye; Reactive dye intermediate CAS 259795-03-4
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through advanced analytical techniques including HPLC, spectrophotometry, and titration. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place 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)	≥ 90% (Area %)
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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