Description

Pentasodium Hydrogen -4-Amino-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxy-6-[(3-Phosphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, multi-functional azo dye intermediate and complexing agent. This compound matters for its unique molecular structure, which provides excellent chelating properties and chromophoric characteristics, making it a critical component in advanced formulations. It is primarily needed by manufacturers in the textile dyeing, specialty chemical synthesis, and water treatment industries for creating high-performance products.

Application

• Textile Dyeing & Printing: As a key intermediate for producing high-fastness, reactive, and direct dyes for cotton, wool, and synthetic fibers.
• Specialty Chemical Synthesis: Used in the manufacture of complex dyes, pigments, and functional colorants for industrial applications.
• Water Treatment Chemicals: Acts as a chelating agent and scale inhibitor in boiler and cooling water systems due to its phosphonate and sulphonate groups.
• Analytical Reagents: Employed as a metallochromic indicator or complexometric agent in analytical chemistry and laboratory testing.
• Paper & Pulp Industry: Utilized in dyeing processes for specialty papers and as a process chemical.
• Research & Development: Serves as a building block for novel materials and chemical research in academic and industrial R&D labs.

Basic Information

Product Name	Pentasodium Hydrogen -4-Amino-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxy-6-[(3-Phosphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	83968-58-5
Molecular Formula	C28H15N5Na5O19P S4
Molecular Weight	Contact for details
Synonyms	5-Amino-4-hydroxy-3-[(2,5-disulfophenyl)azo]-6-[(3-phosphonophenyl)azo]-2,7-naphthalenedisulfonic acid, pentasodium salt; Reactive Dye Intermediate; Azo Dye Complex; Phosphonated Azo Dye; CAS 83968-58-5; Tetrasodium 3-[(2,5-disulfophenyl)azo]-4-[(3-phosphonophenyl)azo]-5-hydroxy-6-amino-2,7-naphthalenedisulfonate (related structure); Multifunctional Azo Chelating Agent
EINECS	Contact for details

Quality Control

Our Pentasodium Hydrogen -4-Amino-3-[(2,5-Disulphonatophenyl)Azo]-5-Hydroxy-6-[(3-Phosphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory compliance needs.

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 each use to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulphated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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