Description

Tetrasodium 3,3'-[(1,6-Dihydro-6-Oxo-1,3,5-Triazine-2,4-Diyl)Bis[Imino(5-Methoxy-2-Methyl-4,1-Phenylene)Azo]]Bis(Naphthalene-1,5-Disulphonate) is a high-purity, water-soluble anionic dye belonging to the class of reactive or direct dyes. This compound matters for its excellent color strength, stability, and affinity for cellulosic fibers, making it a critical component in demanding coloration processes. Industrial buyers in the textile, leather, and specialty paper manufacturing sectors require this product for its reliable performance and batch-to-batch consistency.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers, offering good wash and light fastness.
• Leather Coloring: Used in the dyeing of leather goods to achieve vibrant and durable colors.
• Paper Industry: Employed in the coloration of specialty papers, including decorative and security papers.
• Ink Formulation: Serves as a colorant in the manufacture of certain industrial inks.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific affinity.
• Research & Development: Used as a standard or intermediate in chemical synthesis and dye research.

Basic Information

Product Name	Tetrasodium 3,3'-[(1,6-Dihydro-6-Oxo-1,3,5-Triazine-2,4-Diyl)Bis[Imino(5-Methoxy-2-Methyl-4,1-Phenylene)Azo]]Bis(Naphthalene-1,5-Disulphonate)
CAS No.	82944-42-1
Molecular Formula	C48H34N10Na4O18S4
Molecular Weight	~1236.98 g/mol
Synonyms	Reactive Black 5 (Tetrasodium Salt); C.I. 20505; Tetrasodium 4-Amino-5-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-6-(phenylamino)-2,7-naphthalenedisulfonate (related isomer); Direct Black 22 (related); Azo Black T; Acid Black 1 (related class); 1,5-Naphthalenedisulfonic acid, 3,3'-[(6-oxo-1,6-dihydro-1,3,5-triazine-2,4-diyl)diimino(5-methoxy-2-methyl-4,1-phenylene)azo]di-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our Tetrasodium 3,3'-[(1,6-Dihydro-6-Oxo-1,3,5-Triazine-2,4-Diyl)Bis[Imino(5-Methoxy-2-Methyl-4,1-Phenylene)Azo]]Bis(Naphthalene-1,5-Disulphonate) is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for color value, purity, and solubility. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided to guarantee compliance with your technical 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Water Solubility	Freely soluble
Moisture Content (KF)	≤ 5.0%
Ash Content	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm

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