Description

2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-2-(ethenylsulfonyl)ethoxyethylamino-1,3,5-triazin-2-ylamino-3-4-(ethenylsulfonyl)phenylazo-4-hydroxy-, potassium sodium salt is a high-performance, reactive dye intermediate of significant commercial importance. This compound is engineered to provide excellent covalent bonding properties to substrates, ensuring superior wash and light fastness in the final colored product. It is primarily required by manufacturers in the textile, leather, and specialty paper industries for producing vibrant and durable colors.

Application

• Reactive Dye Synthesis: As a key bifunctional intermediate for manufacturing high-quality fiber-reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Printing and Dyeing: Used in formulations for exhaust dyeing, continuous dyeing, and printing processes to achieve deep, brilliant shades with excellent fastness properties.
• Leather Coloration: Employed in the production of dyes for leather, providing rich color and good penetration with high resistance to rubbing and perspiration.
• Paper Dyeing: Suitable for coloring specialty papers where high color strength and stability are required.
• Ink Formulation: Can be utilized in the development of inks for specific industrial applications demanding chemical resistance.
• Research & Development: Serves as a valuable building block in chemical research for developing novel chromophores and functional dyes.

Basic Information

Product Name	2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-2-(ethenylsulfonyl)ethoxyethylamino-1,3,5-triazin-2-ylamino-3-4-(ethenylsulfonyl)phenylazo-4-hydroxy-, potassium sodium salt
CAS No.	101200-49-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 101200-49-1; Bifunctional Reactive Dye Intermediate; VS/VE Heterobifunctional Reactive Dye; Potassium Sodium Salt of Azo Reactive Dye; C.I. Reactive Black 5 related intermediate; Vinylsulfone reactive dye precursor; Triazinyl reactive dye intermediate; Azo naphthalene disulfonate dye
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and reliability. Quality is verified through comprehensive analytical testing, including HPLC for purity and assay, spectrophotometry for color strength, and titration for functional group content. A Certificate of Analysis (COA) detailing all relevant 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, 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 minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100% ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
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.