Description

Trisodium 4-[[4'-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable colors with specific fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton and cellulose fiber dyeing.
• Direct Dye Production: Used in the manufacture of direct dyes for paper, leather, and textile applications requiring good wash fastness.
• Specialty Pigment Synthesis: Serves as a precursor for creating complex organic pigments used in inks, plastics, and coatings.
• Laboratory & Research: Utilized in chemical research for studying azo coupling reactions and developing new chromogenic materials.
• Functional Dye Development: A starting material for dyes with specialized functions, such as those used in sensitizers or optical applications.

Basic Information

Product Name	Trisodium 4-[[4'-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	68084-22-0
Molecular Formula	C40H25N6Na3O14S3
Molecular Weight	994.79 g/mol
Synonyms	4-[[4'-[(6-Amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-3-hydroxynaphthalene-2,7-disulphonic acid trisodium salt; C.I. Direct Blue 80; Direct Blue 80; Pontamine Blue 3BX; Sirius Supra Blue BRR; Trisodium 8-amino-4-hydroxy-3-[[4'-[(1-hydroxy-6-sulpho-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate
EINECS	Contact for details

Quality Control

Our production of Trisodium 4-[[4'-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing all specification parameters are provided and available upon request.

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 blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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