Description

Tetrasodium 4-[4-Chloro-6-(4-Methyl-2-Sulfophenylamino)-1,3,5-Triazin-2-Ylamino]-6-(4,5-Dimethyl-2-Sulfophenylazo)-5-Hydroxynaphthalene-2,7-Disulfonate is a high-purity, water-soluble anionic dye belonging to the class of reactive and direct dyes. This compound is engineered for exceptional color fastness and stability, making it a critical component for achieving vibrant and durable coloration in demanding industrial processes. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries who require reliable and consistent performance in their formulations.

Application

• Textile Dyeing: As a key dye intermediate for coloring cotton, wool, nylon, and silk, offering excellent wash and light fastness.
• Paper Coloring: Used in the production of high-quality colored papers, including specialty packaging and decorative papers.
• Ink Manufacturing: A vital pigment for formulating inks used in jet printing, flexography, and other industrial printing applications.
• Leather Processing: Employed in the dyeing of leather goods to provide rich, uniform, and long-lasting colors.
• Research & Development: Serves as a standard or intermediate in chemical research for developing new dyes and colorants.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific chromogenic properties.

Basic Information

Product Name	Tetrasodium 4-[4-Chloro-6-(4-Methyl-2-Sulfophenylamino)-1,3,5-Triazin-2-Ylamino]-6-(4,5-Dimethyl-2-Sulfophenylazo)-5-Hydroxynaphthalene-2,7-Disulfonate
CAS No.	148878-22-2
Molecular Formula	C34H23ClN8Na4O16S4
Molecular Weight	Contact for details
Synonyms	Reactive Black 5 (Tetrasodium Salt); C.I. 20505; Tetrasodium 8-[[4-Chloro-6-[(4-methyl-2-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-8-[(4,5-dimethyl-2-sulfophenyl)azo]-3,6-naphthalenedisulfonate; Remazol Black B; Levafix Black EB; Procion Black H-EXL
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 4-[4-Chloro-6-(4-Methyl-2-Sulfophenylamino)-1,3,5-Triazin-2-Ylamino]-6-(4,5-Dimethyl-2-Sulfophenylazo)-5-Hydroxynaphthalene-2,7-Disulfonate adheres to stringent quality management protocols. Every batch is subjected to comprehensive analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure it meets precise customer specifications and industry benchmarks. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

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

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