Description

Disodium 5-[[4-[[3-[[3-[(2,4-Diaminophenyl)Azo]-2-Hydroxy-5-Sulphonatophenyl]Azo]-2,6-Dihydroxyphenyl]Azo]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable colors with specific technical characteristics.

Application

• Primary Intermediate for Textile Dyes: A key building block for synthesizing direct, acid, and reactive dyes used on cotton, wool, silk, and nylon fibers.
• Pigment Manufacturing: Used in the production of high-grade organic pigments for inks, plastics, and paints, offering good lightfastness and thermal stability.
• Specialty Ink Formulation: Serves as a precursor for dyes in jet printing inks and other high-performance ink systems requiring specific solubility and color properties.
• Leather Dyeing: Employed in the synthesis of dyes for coloring leather goods, providing deep, uniform shades.
• Paper Coloring: Used to manufacture dyes for specialty paper products where color consistency and brightness are paramount.
• Biological Staining: Potential use as an intermediate for histochemical stains and indicators in laboratory settings, due to its azo chromophore.

Basic Information

Product Name	Disodium 5-[[4-[[3-[[3-[(2,4-Diaminophenyl)Azo]-2-Hydroxy-5-Sulphonatophenyl]Azo]-2,6-Dihydroxyphenyl]Azo]Phenyl]Azo]Salicylate
CAS No.	67874-26-4
Molecular Formula	C39H26N10Na2O11S2
Molecular Weight	912.79 g/mol
Synonyms	Direct Black 22 (Intermediate); C.I. 35435; Polyazo dye intermediate; Disodium 5-[(4-{[3-({3-[(2,4-diaminophenyl)diazenyl]-2-hydroxy-5-sulfonatophenyl}diazenyl)-2,6-dihydroxyphenyl]diazenyl}phenyl)diazenyl]-2-hydroxybenzoate; Salicylic acid, 5-[[4-[[3-[[3-[(2,4-diaminophenyl)azo]-2-hydroxy-5-sulfophenyl]azo]-2,6-dihydroxyphenyl]azo]phenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-[[3-[[3-[(2,4-Diaminophenyl)Azo]-2-Hydroxy-5-Sulphonatophenyl]Azo]-2,6-Dihydroxyphenyl]Azo]Phenyl]Azo]Salicylate adheres to stringent quality management protocols. Each batch undergoes comprehensive analysis including HPLC assay for purity, identification by spectroscopic methods, and control of key impurities to ensure batch-to-batch consistency and performance in downstream synthesis. Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The material is light-sensitive; prolonged exposure to light should be avoided to prevent degradation.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (typical 97-99%)
Water Content	≤ 5.0%
Solubility (1% in Water)	Complete, clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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