Description

Trisodium 4-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(4-Sulphonato-1-Naphthyl)Azo]Phenyl]Azo]-5-Hydroxynaphtalene-2,7-Disulphonate is a high-purity, multi-azo dye intermediate known for its complex molecular structure and excellent chromophoric properties. This compound is critical for synthesizing high-performance dyes and pigments that require specific shades, brightness, and fastness properties. It is primarily sought after by manufacturers in the textile, leather, and specialty ink industries for producing vibrant and durable colorants.

Application

• Textile Dyeing: As a key intermediate for producing high-grade, wash-fast azo dyes for cotton, wool, and synthetic fibers.
• Leather Coloring: Used in the formulation of pigments and dyes for high-quality leather finishing.
• Specialty Inks: A crucial component in manufacturing inks for packaging, security printing, and other demanding applications.
• Paper Coloring: Employed in the production of dyes for high-brightness and color-fast paper products.
• Research & Development: Serves as a sophisticated chemical building block in R&D labs for developing novel chromophores and functional dyes.
• Plastic and Polymer Coloring: Used as an intermediate for creating colorants suitable for various plastic and polymer matrices.

Basic Information

Product Name	Trisodium 4-[[2,6-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(4-Sulphonato-1-Naphthyl)Azo]Phenyl]Azo]-5-Hydroxynaphtalene-2,7-Disulphonate
CAS No.	81064-47-3
Molecular Formula	C32H16N6Na3O14S3
Molecular Weight	Contact for details
Synonyms	4-[[2,6-Dihydroxy-3-[(4-nitrophenyl)azo]-5-[(4-sulphonato-1-naphthyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonic acid trisodium salt; Trisodium 4-[[2,6-dihydroxy-3-[(4-nitrophenyl)azo]-5-[(4-sulphonato-1-naphthyl)azo]phenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonate; C.I. Direct Brown 1:1; Direct Brown 1:1; Azo Dye Intermediate Brown; 81064-47-3 (CAS); Trisodium salt of a polyazo dye
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and composition. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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