Description

Trisodium 5-[[4-[[7-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-1-Naphthyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex, multi-sulfonated naphthalene-based structure provides excellent substantivity and chromophoric properties, making it a critical precursor for high-performance dyes. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vivid, stable colors with enhanced fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton and cellulose fiber dyeing and printing.
• Production of Acid Dyes: Used in the manufacture of acid dyes for coloring wool, silk, and nylon, offering good levelness and wash fastness.
• Specialty Ink Formulations: Serves as a colorant precursor in the production of inks for jet printing, packaging, and security applications.
• Functional Dye Synthesis: Intermediate for creating functional dyes used in optical data storage, liquid crystal displays (LCDs), and laser applications.
• Laboratory & Research: Used as a standard or reagent in chemical research focused on dye chemistry, photochemistry, and material science.
• Paper Coloring: Employed in the synthesis of dyes for specialty paper products requiring specific color tones and stability.
• Leather Dyeing: Precursor for dyes used in the leather industry to achieve deep, uniform shades.

Basic Information

Product Name	Trisodium 5-[[4-[[7-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-1-Naphthyl]Azo]Salicylate
CAS No.	6473-15-0
Molecular Formula	C37H21N6Na3O13S3
Molecular Weight	914.76 g/mol
Synonyms	5-[[4-[[7-[(6-Amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-1-naphthyl]azo]salicylic acid trisodium salt; Trisodium 1-hydroxy-4-[[1-hydroxy-6-[(4-[(2-hydroxy-5-sulfophenyl)azo]-1-naphthyl)azo]-3-sulfo-2-naphthyl]azo]-3,6-naphthalenedisulfonate; C.I. Acid Black 210; C.I. 300310; Acid Black 210; Trisodium 4-amino-5-hydroxy-3-[[4-[[1-hydroxy-6-[(4-[(2-hydroxy-5-sulfophenyl)azo]-1-naphthyl)azo]-3-sulfo-2-naphthyl]azo]-1-naphthyl]azo]-6-(phenylazo)-2,7-naphthalenedisulfonate (related); Azo dye intermediate 6473-15-0
EINECS	Contact for details

Quality Control

Our production of Trisodium 5-[[4-[[7-[(6-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]-1-Naphthyl]Azo]Salicylate adheres to stringent quality management systems to ensure batch-to-batch consistency and reliability for industrial synthesis. Every lot is analyzed against rigorous in-house specifications, which typically include identity confirmation, purity assay, and control of key impurities. Certificates of Analysis (COA) detailing all test results are provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

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

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