Description

Trisodium 7-[[[[6-[(o-Anisyl)Azo]-5-Hydroxy-7-Sulphonato-2-Naphthyl]Amino]Carbonyl]Amino]-4-Hydroxy-3-[(6-Sulphonato-2-Naphthyl)Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate characterized by its complex poly-sulphonated naphthalene structure. This compound matters for its role as a critical precursor in synthesizing high-performance, colorfast dyes and pigments for demanding industrial applications. Manufacturers in the textile, ink, and specialty coatings industries require this intermediate to produce vivid, stable colors with excellent light and wash fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Synthesis of high-grade reactive dyes for cotton, wool, and nylon fibers, providing brilliant shades and superior wet fastness.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, plastics, and automotive coatings.
• Textile Printing: Key component in formulations for textile printing inks, ensuring sharp definition and color consistency.
• Leather Dyeing: Employed in the manufacture of dyes for leather finishing, offering deep penetration and uniform coloration.
• Paper Coloring: Intermediate for dyes used in specialty paper products requiring specific color standards and stability.
• Research & Development: Serves as a valuable building block in chemical R&D for developing novel chromophores and functional dyes.

Basic Information

Product Name	Trisodium 7-[[[[6-[(o-Anisyl)Azo]-5-Hydroxy-7-Sulphonato-2-Naphthyl]Amino]Carbonyl]Amino]-4-Hydroxy-3-[(6-Sulphonato-2-Naphthyl)Azo]Naphthalene-2-Sulphonate
CAS No.	10114-24-6
Molecular Formula	C45H30N6Na3O16S4
Molecular Weight	~1124.0 g/mol (Contact for exact details)
Synonyms	7-[[[[6-[(2-Methoxyphenyl)azo]-5-hydroxy-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-4-hydroxy-3-[(6-sulfo-2-naphthalenyl)azo]-2-naphthalenesulfonic acid trisodium salt; Trisodium 1-amino-4-[[4-[[4-[(2-methoxyphenyl)azo]-5-sulfo-1-naphthyl]carbamoyl]amino]-2-sulfophenyl]azo]-2-naphthol-6,8-disulfonate; C.I. Reactive Black 5 intermediate; Polyazo dye intermediate; Tetrasulfonated bis-azo dye salt; Reactive dye precursor
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are provided and available upon request. We support compliance with relevant global chemical regulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture. Separate from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Water Solubility	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.