Description

Trisodium 7-[[4'-[[6-(Benzoylamino)-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-8-Hydroxynaphthalene-1,6-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart strong, stable color properties in demanding applications. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking reliable and consistent chromophore performance.

Application

• Textile Dyeing: As a key intermediate for the synthesis of high-grade, wash-fast reactive and direct dyes for cotton, wool, and nylon.
• Ink Manufacturing: Used in the production of pigments for industrial inks, including packaging and security inks, where color intensity and stability are critical.
• Specialty Coatings: Serves as a colorant precursor in coatings for plastics, papers, and other substrates requiring vibrant hues.
• Leather Processing: Employed in the formulation of dyes for leather finishing to achieve deep, uniform coloration.
• Research & Development: Utilized in chemical R&D for developing new colorants and studying azo dye chemistry and properties.
• Analytical Chemistry: May be used as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Item	Detail
Product Name	Trisodium 7-[[4'-[[6-(Benzoylamino)-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-8-Hydroxynaphthalene-1,6-Disulphonate
CAS No.	79135-81-2
Molecular Formula	C47H30N6Na3O16S4
Molecular Weight	~1160.0 g/mol (Contact for exact details)
Synonyms	7-[[4'-[[6-(Benzoylamino)-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-8-hydroxynaphthalene-1,6-disulphonic acid trisodium salt; C.I. Direct Brown 1:1; Direct Brown 1:1; Trisodium 8-hydroxy-7-[[4'-[2-(6-benzamido-1-hydroxy-3-sulphonato-2-naphthyl)diazenyl]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]diazenyl]naphthalene-1,6-disulphonate; Azo dye intermediate brown; Benzamide-based azo dye
EINECS	Contact for details

Quality Control

Our production of Trisodium 7-[[4'-[[6-(Benzoylamino)-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-8-Hydroxynaphthalene-1,6-Disulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, color strength, and chemical identity. Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are provided to guarantee supply reliability and performance consistency for your manufacturing 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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which may affect product quality and handling properties.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 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.