Description

5-[[4-chloro-6-[[5-[[4-chloro-6-[(3-sulphophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulphophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulphophenyl)azo]naphthalene-2,7-disulphonic acid is a complex, high-performance polyazo dye intermediate. This compound is valued for its ability to impart exceptional color strength, brightness, and wash-fastness in demanding applications. It is primarily required by manufacturers in the textile, leather, and specialty ink industries for producing high-grade reactive and direct dyes.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-quality reactive dyes used in cotton, viscose, and other cellulose fiber dyeing and printing.
• Direct Dye Production: Used in the formulation of direct dyes, offering good affinity for cellulose fibers without the need for a mordant.
• Leather Coloring: Employed in the production of dyes for coloring leather goods, providing deep, uniform shades with good durability.
• Inkjet Inks: Serves as a precursor for advanced colorants in high-performance industrial and textile inkjet printing inks.
• Paper Dyeing: Used in the manufacture of dyes for specialty paper products requiring vibrant and stable colors.
• Research & Development: An important chemical entity for R&D laboratories focusing on novel chromophore systems and dye chemistry.

Basic Information

Product Name	5-[[4-chloro-6-[[5-[[4-chloro-6-[(3-sulphophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulphophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulphophenyl)azo]naphthalene-2,7-disulphonic acid
CAS No.	93942-65-5
Molecular Formula	C34H21Cl2N13O14S4
Molecular Weight	1050.88 g/mol
Synonyms	Reactive Black 5 Intermediate; Polyazo Dye Intermediate; C.I. Reactive Black 5 precursor; Tetrasulfonated Azo Dye Intermediate; 5-[[4-Chloro-6-[[5-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-2-sulfophenyl]amino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(2-sulfophenyl)azo]naphthalene-2,7-disulfonic acid; Azo dye derivative CAS 93942-65-5; Black 5 dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and performance. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, impurity profile, and physical characteristics.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 90% (Typical 92-97%)
Moisture (KF)	≤ 5.0%
Solubility (1% in Water)	Complete, clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	≤ 1.0%

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