Description

2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-4-fluoro-6-5-hydroxy-6-(4-methoxy-2-sulfophenyl)azo-7-sulfo-2-naphthalenylamino-1,3,5-triazin-2-ylamino-1-methylethylamino-1,3,5-triazin-2-ylamino-3-4-(ethenylsulfonyl)phenylazo-4-hydroxy-, sodium salt is a high-performance, reactive dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages, triazine rings, and a reactive vinyl sulfone group, is engineered to deliver exceptional color fastness and covalent bonding to cellulosic fibers. This compound is essential for manufacturers requiring brilliant and durable shades in the textile dyeing and printing industry. Its specific design makes it a critical component for producing high-quality reactive dyes.

Application

• Primary application in the synthesis of high-grade reactive dyes for cotton, viscose, and other cellulosic fabrics.
• Used as a key colorant intermediate in the production of dyes for textile printing inks, ensuring vivid and wash-fast prints.
• Employed in the manufacturing of dyes for leather coloring, providing rich and durable hues.
• Serves as a specialized intermediate for paper coloration processes requiring specific shade and fastness properties.
• Potential use in the research and development of functional dyes for non-textile applications, such as sensors or optical materials.

Basic Information

Product Name	2,7-Naphthalenedisulfonic acid, 5-4-chloro-6-2-4-fluoro-6-5-hydroxy-6-(4-methoxy-2-sulfophenyl)azo-7-sulfo-2-naphthalenylamino-1,3,5-triazin-2-ylamino-1-methylethylamino-1,3,5-triazin-2-ylamino-3-4-(ethenylsulfonyl)phenylazo-4-hydroxy-, sodium salt
CAS No.	168113-78-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Red 268; Reactive Red 268; Sodium 5-[[4-chloro-6-[[2-[[4-fluoro-6-[[5-hydroxy-6-[(4-methoxy-2-sulfophenyl)azo]-7-sulfo-2-naphthyl]amino]-1,3,5-triazin-2-yl]amino]-1-methylethyl]amino]-1,3,5-triazin-2-yl]amino]-3-[[4-(ethenylsulfonyl)phenyl]azo]-4-hydroxy-2,7-naphthalenedisulfonate; Reactive Dye Intermediate 168113-78-8; Vinylsulfone Reactive Dye Intermediate; Azo Triazine Reactive Dye Intermediate
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 performance reliability. Quality is verified through a comprehensive suite of analytical techniques including HPLC for purity, spectrophotometry for color strength, and titration for functional group analysis. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100% ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
Heavy Metals	Max. 20 ppm

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