Description

Tetrasodium Hydrogen 2-[[4-Chloro-6-[[8-Hydroxy-3,6-Disulphonato-7-[(2-Sulphonatophenyl)Azo]-1-Naphthyl]Amino]-1,3,5-Triazin-2-Yl]Amino]-5-Sulphonatobenzoate is a high-performance, water-soluble anionic dye belonging to the reactive dye class, characterized by its multiple sulfonate groups for excellent solubility and substantivity. This compound matters for its ability to form strong covalent bonds with cellulosic fibers, providing exceptional wash and light fastness properties in demanding textile applications. Industrial manufacturers in the textile dyeing and printing sectors require this chemical for producing vibrant, durable shades on cotton, viscose, and other natural fibers.

Application

• Reactive Dyeing of Cellulosic Fibers: Primary application for exhaust and continuous dyeing processes on cotton, linen, hemp, and rayon, ensuring deep penetration and uniform color.
• Textile Printing: Used in pigment printing pastes and inks for creating sharp, colorfast patterns on fabrics.
• Leather Coloring: Imparts rich, stable colors to finished leather goods.
• Paper Dyeing: Provides coloration for specialty papers, including decorative and packaging grades.
• Ink Formulation: A key component in the manufacture of certain industrial inks requiring high solubility and color strength.
• Research & Development: Serves as a chemical intermediate or reference standard in the development of new dye molecules and processes.

Basic Information

Product Name	Tetrasodium Hydrogen 2-[[4-Chloro-6-[[8-Hydroxy-3,6-Disulphonato-7-[(2-Sulphonatophenyl)Azo]-1-Naphthyl]Amino]-1,3,5-Triazin-2-Yl]Amino]-5-Sulphonatobenzoate
CAS No.	70865-39-3
Molecular Formula	C31H15ClN7Na4O17S4
Molecular Weight	1044.2 g/mol (approx.)
Synonyms	Reactive Black 5, Tetrasodium Salt; C.I. Reactive Black 5; Remazol Black B; Reactive Black B; Lanasol Black B; Drimarene Black B; Synozol Black B; 2-[[4-Chloro-6-[[8-hydroxy-3,6-disulfo-7-[(2-sulfophenyl)azo]-1-naphthyl]amino]-1,3,5-triazin-2-yl]amino]-5-sulfobenzoic acid, tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of Tetrasodium Hydrogen 2-[[4-Chloro-6-[[8-Hydroxy-3,6-Disulphonato-7-[(2-Sulphonatophenyl)Azo]-1-Naphthyl]Amino]-1,3,5-Triazin-2-Yl]Amino]-5-Sulphonatobenzoate adheres to stringent quality management systems. Every batch undergoes rigorous testing for color strength, shade, solubility, and impurity profile to ensure consistency and performance in your application. Certificates of Analysis (COA) detailing purity, physical properties, and conformance to specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture which may affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Black to Bluish-Black Powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (Standard)
Assay (HPLC)	≥ 90%
Moisture Content	≤ 5.0%
Water Solubility	≥ 100 g/L (at 25°C)
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm

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