Description

Trisodium 4-Amino-3-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Naphthalene-1-Sulphonate is a high-purity, water-soluble anionic dye intermediate characterized by its complex polyazo structure. This compound is essential for synthesizing high-value, colorfast dyes and pigments, particularly in applications requiring specific shades of red and violet with excellent light and wash fastness. It is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colors.

Application

• Textile Dyeing: Primary intermediate for the synthesis of reactive, direct, and acid dyes used on cotton, wool, silk, and nylon fibers.
• Ink Manufacturing: Key component in the production of high-performance inks for digital, packaging, and security printing applications.
• Pigment Production: Used in the manufacture of lake pigments and toners for plastics, paints, and coatings.
• Leather Coloring: Intermediate for dyes applied in the leather tanning and finishing industry.
• Paper Coloring: Employed in the production of dyes for specialty and decorative papers.
• Biological Staining: Potential use as a precursor for histological stains and indicators in laboratory settings.
• Research & Development: Serves as a standard or building block in chemical research for novel chromophores and functional materials.

Basic Information

Item	Detail
Product Name	Trisodium 4-Amino-3-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Naphthalene-1-Sulphonate
CAS No.	67990-28-7
Molecular Formula	C30H18N4Na3O13S3
Molecular Weight	824.62 g/mol
Synonyms	4-Amino-3-{[4-(2-(4-nitro-2-sulfonatophenyl)ethenyl)-3-sulfonatophenyl]diazenyl}naphthalene-1-sulfonate trisodium salt; Trisodium 4-amino-3-{[4-(2-(4-nitro-2-sulfophenyl)vinyl)-3-sulfophenyl]azo}-1-naphthalenesulfonate; CI 26360; Reactive Red 180 (related dye class); Polyazo dye intermediate; Anionic diazo compound; Water-soluble dye intermediate
EINECS	Contact for details

Quality Control

Our Trisodium 4-Amino-3-[[4-[2-(4-Nitro-2-Sulphonatophenyl)Vinyl]-3-Sulphonatophenyl]Azo]Naphthalene-1-Sulphonate is produced under a strict quality management system. 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 purity, impurity profile, and physical specifications are 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	7.0 - 9.0

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