Description

Tetrasodium 8-Hydroxy-7-[[4'-[[1-Hydroxy-6-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Naphthalene-1,3,6-Trisulphonate is a high-purity, water-soluble azo dye intermediate characterized by its complex polyaromatic structure and multiple sulphonate groups. This compound is critically important for its role as a key precursor in the synthesis of high-performance, colorfast dyes and pigments. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, stable colors with excellent wash and light fastness properties.

Application

• Primary Intermediate for Reactive Dyes: A crucial building block for synthesizing high-grade reactive dyes used in cotton and cellulose fiber dyeing.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, plastics, and coatings, offering enhanced color strength and stability.
• Textile Printing Inks: Serves as a key component in formulating specialized inks for digital and screen printing on textiles.
• Leather Dyeing: Employed in the formulation of dyes for leather, providing deep, uniform coloration with good adhesion.
• Paper Coloring: Used in the manufacture of dyes for high-quality paper and specialty packaging materials.
• Research & Development: A valuable compound for R&D laboratories focusing on novel chromophores, dye chemistry, and material science.

Basic Information

Product Name	Tetrasodium 8-Hydroxy-7-[[4'-[[1-Hydroxy-6-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Naphthalene-1,3,6-Trisulphonate
CAS No.	85135-91-7
Molecular Formula	C46H30N6Na4O19S4
Molecular Weight	~1190.0 g/mol (Contact for exact details)
Synonyms	Tetrasodium 1,3,6-Naphthalenetrisulfonate, 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-; C.I. Reactive Blue 222 intermediate; Reactive Blue 222 precursor; Azo dye intermediate 85135-91-7; Polyazo dye intermediate; Tetrasodium salt of a polyazo naphthalene trisulfonate; 8-Hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxybiphenyl-4-yl]azo]naphthalene-1,3,6-trisulphonate
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 8-Hydroxy-7-[[4'-[[1-Hydroxy-6-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]Naphthalene-1,3,6-Trisulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Products undergo rigorous quality testing, including chromatographic purity analysis and spectrophotometric identification, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance. Keep away from incompatible materials.

Specification

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

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