Description

Tetrasodium 3,3'-[[6-[Bis(2-Hydroxyethyl)Amino]-1,3,5-Triazine-2,4-Diyl]Bis(Imino-4,1-Phenyleneazo)]Bisnaphthalene-1,5-Disulphonate is a high-purity, water-soluble anionic dye belonging to the reactive dye class, characterized by its complex triazine-based structure. This compound is engineered to provide exceptional color fastness and brilliant hue, making it a critical component for demanding coloration processes. It is primarily sought after by manufacturers in the textile, paper, and leather industries where consistent, high-quality dyeing is paramount.

Application

This specialized reactive dye is utilized in a variety of industrial applications where strong, durable coloration is required.

• Textile Dyeing and Printing: Primary application for cotton, viscose, and other cellulosic fibers, offering excellent wash and light fastness.
• Leather Finishing: Used for dyeing leather goods, providing rich, uniform color penetration.
• Paper Coloring: Employed in the production of specialty papers, including decorative and packaging materials.
• Ink Formulation: A key component in the manufacture of certain industrial and inkjet printing 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 chemistry and material science research.

Basic Information

Product Name	Tetrasodium 3,3'-[[6-[Bis(2-Hydroxyethyl)Amino]-1,3,5-Triazine-2,4-Diyl]Bis(Imino-4,1-Phenyleneazo)]Bisnaphthalene-1,5-Disulphonate
CAS No.	68155-60-2
Molecular Formula	C44H34N12Na4O16S4
Molecular Weight	~1194.06 g/mol
Synonyms	Reactive Black 5, Tetrasodium Salt; C.I. Reactive Black 5; Remazol Black B; Lanasol Black B; Procion Black H-EXL; Synozol Black HFGR; Drimarene Black K-2B; Levafix Black E-B
EINECS	Contact for details

Quality Control

Our production of this reactive dye adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is analyzed for critical parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting purity, physical properties, and conformance to agreed specifications are available upon request. We support compliance with global standards including REACH and other relevant regulatory frameworks.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture or direct light may affect performance and stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Color Strength	≥ 98% (vs. Standard)
Purity (HPLC)	≥ 90%
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
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.