Description

Trisodium 5-(Acetylamino)-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[(4-Nitro-2-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble synthetic organic dye belonging to the azo dye class. This compound is valued for its ability to provide a strong, stable colorant, making it a critical component in demanding industrial applications where color fastness and consistency are paramount. It is primarily sought by manufacturers in the textile, leather, and specialty ink industries for dyeing and printing processes.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, particularly where bright, wash-fast shades are required.
• Leather Finishing: Used in the coloration of leather goods, providing uniform and durable color penetration.
• Ink Formulation: A key pigment for manufacturing specialty printing inks, including inks for packaging and security printing.
• Paper Coloration: Employed in the production of colored papers and paper products.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific chromogenic properties.
• Plastics and Polymers: Can be incorporated as a colorant for certain types of plastics and synthetic materials.

Basic Information

Product Name	Trisodium 5-(Acetylamino)-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[(4-Nitro-2-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonate
CAS No.	84583-92-6
Molecular Formula	C32H22N6Na3O16S3
Molecular Weight	904.78 g/mol
Synonyms	Reactive Black 5 (common commercial name); C.I. 20505; Trisodium 4-Amino-5-hydroxy-6-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-2,7-naphthalenedisulfonate (related isomer); 5-(Acetylamino)-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-nitro-2-sulfophenyl)azo]phenyl]azo]-2,7-naphthalenedisulfonic acid trisodium salt; Azo dye 84583-92-6; Acid Black 5 (related class); Trisodium 3-[[4-[(2-hydroxy-5-sulfophenyl)azo]-2-methoxy-5-methylphenyl]azo]-4-hydroxy-5-(acetylamino)-2,7-naphthalenedisulfonate
EINECS	Contact for details

Quality Control

Our production of Trisodium 5-(Acetylamino)-4-Hydroxy-3-[[2-Methoxy-5-Methyl-4-[(4-Nitro-2-Sulphonatophenyl)Azo]Phenyl]Azo]Naphthalene-2,7-Disulphonate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance reliability. The product is manufactured under a quality management system and undergoes comprehensive analysis, including HPLC for purity, spectrophotometry for color strength, and tests for insolubles and heavy metals. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

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). Keep away from strong oxidizing agents. Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance.

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
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Insoluble Matter	≤ 0.1%

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