Description

Disodium 3,3'-[[6-[Bis(2-Hydroxyethyl)Amino]-1,3,5-Triazine-2,4-Diyl]Bis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate] is a high-purity, water-soluble anionic dye belonging to the reactive and direct dye class, characterized by its complex triazine-based structure. This compound matters for its exceptional color strength, good lightfastness, and affinity for cellulosic fibers, making it a critical component for achieving vibrant and durable shades. It is primarily needed by manufacturers in the textile, leather, and paper industries seeking reliable and consistent coloring agents for their production processes.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers, often as a direct or reactive dye.
• Leather Coloring: Used in the dyeing of leather goods to provide rich, even coloration.
• Paper Industry: Employed in the production of colored papers and paper products.
• Ink Formulation: A component in the manufacture of specialty inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its chromophoric properties.
• Research & Development: Serves as a key intermediate or standard in chemical research for developing new dyes and pigments.

Basic Information

Product Name	Disodium 3,3'-[[6-[Bis(2-Hydroxyethyl)Amino]-1,3,5-Triazine-2,4-Diyl]Bis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate]
CAS No.	52238-69-4
Molecular Formula	C40H38N12Na2O14S2
Molecular Weight	1020.91 g/mol
Synonyms	Reactive Black 5 (common commercial name); C.I. 20505; Disodium 4-amino-5-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-6-(phenylazo)-2,7-naphthalenedisulfonate (alternative IUPAC); Benzenesulfonic acid, 3,3'-[[6-[bis(2-hydroxyethyl)amino]-1,3,5-triazine-2,4-diyl]bis[imino(3-methoxy-4,1-phenylene)azo]]bis-, disodium salt; Triazine Azo Dye; Direct Black 22 (related class); Lanasol Black B (potential trade name).
EINECS	Contact for details

Quality Control

Our Disodium 3,3'-[[6-[Bis(2-Hydroxyethyl)Amino]-1,3,5-Triazine-2,4-Diyl]Bis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate] is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for color value, purity, and solubility. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 tightly sealed to prevent absorption of atmospheric moisture.

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	Clear solution at 1%
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.