Description

Trisodium 5-[[2-Amino-4-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Phenyl]Azo]Naphthalene-1-Sulphonate is a high-purity, water-soluble anionic dye intermediate characterized by its complex azo and vinyl-substituted aromatic structure. This compound is engineered to deliver exceptional color strength and stability, making it a critical component for synthesizing advanced dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, durable colors with consistent batch-to-batch performance.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon fibers.
• Textile Colorant Production: Used to manufacture dyes that offer excellent wash-fastness and light-fastness for the textile industry.
• Inkjet and Printing Inks: Serves as a precursor for pigments used in high-quality digital inks and industrial printing applications.
• Specialty Coatings and Paints: Employed in creating colorants for coatings that require specific chemical resistance and durability.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying dye-polymer interactions.
• Paper Coloring: Intermediate for dyes used in the coloring of specialty papers and packaging materials.

Basic Information

Product Name	Trisodium 5-[[2-Amino-4-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Phenyl]Azo]Naphthalene-1-Sulphonate
CAS No.	72496-85-6
Molecular Formula	C36H22N6Na3O13S3
Molecular Weight	936.81 g/mol
Synonyms	5-[[2-Amino-4-[[4-[2-(4-Nitro-2-sulfophenyl)vinyl]-3-sulfophenyl]azo]phenyl]azo]naphthalene-1-sulfonic acid trisodium salt; Trisodium 1-amino-2-[[4-[[4-[2-(4-nitro-2-sulfonatophenyl)vinyl]-3-sulfonatophenyl]azo]phenyl]azo]naphthalene-5-sulfonate; Reactive Dye Intermediate; Azo Dye Intermediate; C.I. Reactive Red 198 intermediate; Vinyl sulfone azo dye intermediate
EINECS	Contact for details

Quality Control

Our production of Trisodium 5-[[2-Amino-4-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Phenyl]Azo]Naphthalene-1-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing including HPLC for purity and identity confirmation to ensure compliance with exacting industry specifications. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are provided to guarantee traceability and supply chain confidence for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); prolonged exposure to humidity or direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Water Content	Max. 5.0%
Sulfated Ash	20.0% - 25.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Clear solution

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