Description

7,7'-[vinylenebis[(3-sulpho-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-[(aminocarbonyl)amino]-4,1-phenylene]azo]]bisnaphthalene-1,3,6-trisulphonic acid is a high-performance, polyfunctional reactive dye intermediate characterized by its complex molecular structure featuring multiple sulphonic acid groups, azo linkages, and chlorotriazine reactive sites. This compound is engineered to deliver exceptional color strength, wash-fastness, and covalent bonding capability to textile substrates. It is a critical raw material for manufacturers of reactive dyes targeting the textile, leather, and specialty paper industries, where vibrant, durable coloration is paramount.

Application

• Primary Intermediate for Fiber-Reactive Dyes: Synthesis of high-grade reactive dyes for cotton, viscose, and other cellulosic fibers.
• Textile Dyeing and Printing: Used in the production of dyes for exhaust, pad-batch, and continuous dyeing processes requiring excellent wet fastness properties.
• Leather Coloration: Manufacture of dyes for high-quality leather finishing with good light and rub fastness.
• Specialty Paper Dyes: Production of dyes for coloring high-value papers where brightness and stability are required.
• Research & Development: Serves as a key building block in R&D for novel chromophores and advanced colorant systems.
• Ink Formulations: Potential use in the synthesis of pigments for specialty inks.

Basic Information

Item	Details
Product Name	7,7'-[vinylenebis[(3-sulpho-4,1-phenylene)imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-[(aminocarbonyl)amino]-4,1-phenylene]azo]]bisnaphthalene-1,3,6-trisulphonic acid
CAS No.	94022-71-6
Molecular Formula	C58H34Cl2N16O26S8
Molecular Weight	~1686.36 g/mol (Contact for exact details)
Synonyms	Reactive Dye Intermediate 94022-71-6; C.I. Reactive Black 5 Precursor; Vinylene Bis Azo Naphthalene Trisulfonic Acid Derivative; Polyazo Reactive Dye Intermediate; Bis(1,3,6-naphthalenetrisulfonic acid) derivative; Tetrasulfonated bis-azo reactive intermediate; Chlorotriazine-based disazo dye; CAS 94022-71-6
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality management systems. Every batch is subjected to comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reproducibility. Certificates of Analysis (COA) detailing purity, strength, and impurity profiles are provided and can be tailored to meet specific customer requirements.

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). 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 solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 90% (Contact for specific grade purity)
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Solubility (in Water)	Freely 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.