Description

4,4'-[(6-Chloro-1,3,5-Tiazine-2,4-Diyl)Diimino]Bis[5-Hydroxy-6-[[4-[[2-(Sulfooxy) Ethyl]Sulfonyl]Phenyl]Azo]-2,7-Naphthalenedisulfonic Acid Hexasodium Salt is a high-purity, reactive dye intermediate of significant commercial importance. This compound is valued for its ability to form covalent bonds with substrates, providing excellent wash and light fastness properties in the final colored product. It is primarily sought after by manufacturers in the textile, leather, and specialty paper industries for producing high-performance, fiber-reactive dyes.

Application

• Fiber-Reactive Dye Synthesis: A key intermediate for manufacturing reactive dyes used in cotton, wool, silk, and nylon dyeing and printing.
• Leather Coloring: Used in the production of dyes for high-quality leather finishing with superior color fastness.
• Paper Dyeing: Employed in creating specialty dyes for high-grade paper and packaging materials requiring vibrant, stable colors.
• Ink Formulation: A component in the synthesis of pigments for inks where chemical bonding to the substrate is desired.
• Research & Development: Serves as a critical building block in R&D for novel chromophores and advanced colorant systems.

Basic Information

Item	Details
Product Name	4,4'-[(6-Chloro-1,3,5-Tiazine-2,4-Diyl)Diimino]Bis[5-Hydroxy-6-[[4-[[2-(Sulfooxy) Ethyl]Sulfonyl]Phenyl]Azo]-2,7-Naphthalenedisulfonic Acid Hexasodium Salt
CAS No.	73179-36-9
Molecular Formula	C44H28ClN11Na6O26S8
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (Parent dye class reference); C.I. Reactive Black 5 intermediate; Hexasodium 4,4'-[6-chloro-1,3,5-triazine-2,4-diylbis(imino)]bis[5-hydroxy-6-[(4-{[2-(sulfonatooxy)ethyl]sulfonyl}phenyl)azo]naphthalene-2,7-disulfonate]; 4,4'-Bis[5-hydroxy-6-[(4-((2-sulfooxyethyl)sulfonyl)phenyl)azo]-2,7-disulfo-1-naphthylamino]-6-chloro-s-triazine hexasodium salt; Reactive dye intermediate 73179-36-9; Chlorotriazine-based disazo dye intermediate.
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and other critical parameters is provided with every shipment to support your quality assurance processes.

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 tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content	Max. 5.0%
Impurity Profile (HPLC)	Single largest impurity ≤ 1.0%
Solubility (in Water)	Freely soluble

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