Description

4-Amino-6-[[5-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphophenyl]Azo]-3-[(2,5-Disulphophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid CAS NO 61433-40-7 is a high-purity, polyfunctional reactive dye intermediate characterized by its complex azo and triazine-based structure. This compound is essential for synthesizing high-performance, colorfast dyes and pigments, offering superior binding affinity and chromophore stability. It is primarily required by manufacturers in the textile, leather, and specialty chemical industries seeking to produce vivid, durable colors with excellent wash and light fastness properties.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes used in cotton, wool, and nylon fiber dyeing.
• Textile Industry: Production of dyes for textiles requiring exceptional color strength, brightness, and resistance to washing and bleaching.
• Leather Coloring: Used in formulating dyes for leather products to achieve deep, uniform, and long-lasting coloration.
• Paper Dyeing: Employed in the production of dyes for specialty and high-quality paper products.
• Ink Manufacturing: Serves as a precursor for pigments in industrial inks, including those for packaging and printing.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo coupling reactions.

Basic Information

Product Name	4-Amino-6-[[5-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphophenyl]Azo]-3-[(2,5-Disulphophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid
CAS No.	61433-40-7
Molecular Formula	C25H14Cl2N10O14S4
Molecular Weight	889.64 g/mol
Synonyms	Reactive Black 5 Intermediate; C.I. Reactive Black 5 Precursor; 4-Amino-5-hydroxy-6-[[2-sulfo-4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]phenyl]azo]-3-[(2,5-disulfophenyl)azo]-2,7-naphthalenedisulfonic Acid; Polyazo Reactive Dye Intermediate; Tetrasulfonated Azo Dye Intermediate; 61433-40-7; Reactive Dye Intermediate CAS 61433-40-7
EINECS	Contact for details

Quality Control

Our production of 4-Amino-6-[[5-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphophenyl]Azo]-3-[(2,5-Disulphophenyl)Azo]-5-Hydroxynaphthalene-2,7-Disulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing purity, impurity profile, and physical data are provided with each shipment to guarantee traceability and quality assurance for your manufacturing processes.

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) and should be kept under dry conditions to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Dark blue to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 5.0%
Water Solubility	Soluble
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.