Description

Trisodium 4-(Benzoylamino)-6-[[5-[[[(2,3-Dichloroquinoxalin-6-Yl)Carbonyl]Methylamino]Methyl]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-1,7-Disulphonate is a high-purity, water-soluble anionic dye complex derived from quinoxaline and naphthalene chemistry. This compound matters for its exceptional color strength and stability, making it a critical component for demanding technical applications. Industrial users in the textile, specialty ink, and advanced material coating sectors require this product for its reliable performance and batch-to-batch consistency.

Application

• Textile Dyeing: Primarily used for dyeing and printing of polyamide (nylon) and protein-based fibers (wool, silk), offering excellent wash and light fastness.
• Leather Coloring: Provides vibrant and durable coloration for high-quality finished leather goods.
• Specialty Inks: A key pigment component in the formulation of jet printing inks and other high-performance ink systems requiring specific spectral properties.
• Paper Coloration: Used in the production of specialty colored papers where high color value and stability are required.
• Biological Staining: Potential application as a specialized stain in histology or microbiology due to its specific chromophore structure.
• Functional Material Coatings: Incorporated into coatings for plastics or other materials where a stable, colored finish is necessary.

Basic Information

Product Name	Trisodium 4-(Benzoylamino)-6-[[5-[[[(2,3-Dichloroquinoxalin-6-Yl)Carbonyl]Methylamino]Methyl]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-1,7-Disulphonate
CAS No.	83399-99-9
Molecular Formula	C42H26Cl2N6Na3O13S3
Molecular Weight	1083.73 g/mol (approx.)
Synonyms	Acid Blue 281; C.I. 61211; Reactive Blue 281 (precursor form); Trisodium 4-(benzoylamino)-5-hydroxy-6-({5-[({[(2,3-dichloro-6-quinoxalinyl)carbonyl]methyl}amino)methyl]-2-sulfophenyl}azo)-1,7-naphthalenedisulfonate; 2,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy-6-[2-[5-[[[(2,3-dichloro-6-quinoxalinyl)carbonyl]methylamino]methyl]phenyl]diazenyl]-, trisodium salt; Quinoxaline-based anionic dye; 83399-99-9
EINECS	Contact for details

Quality Control

Our production of Trisodium 4-(Benzoylamino)-6-[[5-[[[(2,3-Dichloroquinoxalin-6-Yl)Carbonyl]Methylamino]Methyl]-2-Sulphonatophenyl]Azo]-5-Hydroxynaphthalene-1,7-Disulphonate adheres to stringent quality protocols to ensure high purity, consistent color value, and reliable performance for industrial applications. Each batch is analyzed using advanced techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, strength, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your specifications.

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 material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 90% (Dye Content)
Color Strength	100% ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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