Description

Trisodium 8-[[4-[(4-Acetamidophenyl)Azo]-6-Sulphonatonaphthyl]Azo]-5-[(2-Hydroxy-6-Sulphonatonaphthyl)Azo]Naphthalene-2-Sulphonate is a high-purity, multi-azo dye intermediate known for its complex molecular structure and excellent chromophoric properties. This compound is critical for synthesizing specialized dyes and pigments that require high color strength, stability, and specific solubility profiles. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for producing high-grade, wash-fast azo dyes for synthetic and natural fibers.
• Ink Manufacturing: Used in the synthesis of pigments for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Serves as a precursor for colorants in high-performance paints and polymer coatings.
• Leather Coloring: Employed in the production of dyes for the uniform and durable coloring of leather goods.
• Paper Coloring: Used in the manufacture of dyes for specialty and decorative papers.
• Research & Development: Acts as a standard or building block in chemical research for developing novel chromophores and functional dyes.
• Plastics and Polymers: Intermediate for colorants used in mass-coloration of plastics and synthetic materials.

Basic Information

Product Name	Trisodium 8-[[4-[(4-Acetamidophenyl)Azo]-6-Sulphonatonaphthyl]Azo]-5-[(2-Hydroxy-6-Sulphonatonaphthyl)Azo]Naphthalene-2-Sulphonate
CAS No.	67906-48-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Direct Brown 1:1; Trisodium 8-[[4-[(4-acetamidophenyl)azo]-6-sulphonato-1-naphthyl]azo]-5-[(2-hydroxy-6-sulphonato-1-naphthyl)azo]naphthalene-2-sulphonate; Direct Brown 1:1; Azo Dye Intermediate Brown 1:1; 1-Naphthalenesulfonic acid, 8-[[4-[(4-acetamidophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-5-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot undergoes comprehensive analytical testing, including chromatography and spectrophotometry, to verify identity and assay. A Certificate of Analysis (COA) detailing all test results is provided with each 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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Freely soluble

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