Description

Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonate is a high-purity, water-soluble anionic dye belonging to the class of reactive and direct dyes, characterized by its complex polyazo and triazine-based structure. This compound is engineered to deliver exceptional color strength, wash-fastness, and chemical stability, making it a critical component for demanding coloration processes. It is primarily utilized by manufacturers in the textile, leather, and specialty paper industries seeking reliable and vibrant dyeing agents.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers, offering excellent substantivity and fastness properties.
• Leather Finishing: Used for coloring leather goods, providing deep, uniform shades with good light and rub fastness.
• Paper Coloration: Suitable for the tinting and dyeing of specialty papers, including decorative and packaging grades.
• Ink Formulation: A key pigment component in the manufacture of certain types of industrial inks.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific affinity.
• Research & Development: Serves as a chemical intermediate or reference standard in synthetic organic chemistry and dye research.

Basic Information

Product Name	Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonate
CAS No.	84434-58-2
Molecular Formula	C40H21ClN10Na4O14S4
Molecular Weight	1151.3 g/mol (approx.)
Synonyms	Reactive Black 5, Tetrasodium Salt; C.I. Reactive Black 5; Remazol Black B; Lanasol Black B; Procion Black H-EXL; Direct Black 22 (related); 3-[[4-[[4-[(4-Amino-6-chloro-1,3,5-triazin-2-yl)amino]-7-sulphonato-1-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]naphthalene-1,5-disulphonic acid, tetrasodium salt; Tetrasodium 8-amino-2-[[7-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-7-sulphonato-1-naphthyl]azo]-8-hydroxy-3,6-disulphonato-2-naphthyl]azo]-1-naphthol-3,6-disulphonate (alternative representation)
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 3-[[4-[[4-[(4-Amino-6-Chloro-1,3,5-Triazin-2-Yl)Amino]-7-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Naphthalene-1,5-Disulphonate adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and compliance with industry specifications for dye content and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing purity, strength, and key physical-chemical parameters is provided with every shipment to guarantee product integrity 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to standard
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	Freely soluble
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	Max. 20 ppm
Ash Content	Contact for details

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