Description

Tetrasodium 2-[[8-[[4-chloro-6-[[4-(6-methyl-7-sulphonatobenzothiazol-2-yl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]benzoate is a high-performance, water-soluble anionic dye belonging to the reactive dye class, characterized by its complex polyazo structure and multiple sulphonate groups. This compound is engineered to deliver exceptional color fastness, brightness, and wash resistance, making it a critical component for demanding coloration processes. It is primarily utilized by manufacturers in the textile, leather, and specialty paper industries seeking vibrant and durable shades.

Application

• Textile Dyeing: Primary application for dyeing and printing of cellulosic fibers like cotton, viscose, and linen, offering excellent fixation and wash-fast properties.
• Leather Finishing: Used for coloring leather goods, providing rich, uniform color with good light and rub fastness.
• Paper Coloration: Suitable for specialty paper products requiring high color value and stability, such as decorative papers and security papers.
• Ink Formulation: A key pigment for manufacturing inks used in jet printing and other applications where water solubility and color intensity are paramount.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific affinity and color properties.

Basic Information

Item	Detail
Product Name	Tetrasodium 2-[[8-[[4-chloro-6-[[4-(6-methyl-7-sulphonatobenzothiazol-2-yl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]benzoate
CAS No.	70209-93-7
Molecular Formula	C34H19ClN9Na4O14S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (Tetrasodium Salt); C.I. Reactive Black 5; Remazol Black B; Lanasol Black B; Procion Black H-EXL; Tetrasodium 8-[(4-[(4-Chloro-6-[(4-[(6-Methyl-7-sulfo-2-benzothiazolyl)amino]phenyl)amino]-1,3,5-triazin-2-yl)amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo]benzoate; Benzoic acid, 2-[[8-[[4-chloro-6-[[4-(6-methyl-7-sulfo-2-benzothiazolyl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthyl]azo]-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 2-[[8-[[4-chloro-6-[[4-(6-methyl-7-sulphonatobenzothiazol-2-yl)phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]benzoate adheres to stringent quality management protocols. Every batch undergoes comprehensive analysis to ensure consistent color strength, purity, and application performance. Certificates of Analysis (COA) detailing specifications such as assay, shade, solubility, and impurity profile are available upon request to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms
Color Strength	Standard Depth ± 3%
Assay (HPLC)	≥ 90%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution
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.