Description

5-Acetamido-4-Hydroxy-3-[(3-Phosphonophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Ammonium Sodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its sulfonic acid and phosphonate functional groups. This compound is engineered for applications requiring precise color formation and excellent substrate affinity, particularly in specialized analytical and industrial processes. It is primarily utilized by manufacturers and R&D laboratories in the dye, pigment, and analytical reagent sectors.

Application

• Analytical Reagent: Used as a chromogenic agent or complexometric indicator in spectrophotometric analysis and metal ion detection.
• Specialty Dye Intermediate: Serves as a key precursor for synthesizing high-value azo dyes and pigments, especially those requiring phosphonate groups for enhanced bonding.
• Textile Dyeing: Employed in the production of dyes for protein fibers like wool and silk, where its sulfonic acid groups improve solubility and fastness.
• Biological Staining: Potential use in histological stains or as a fluorescent probe precursor due to its conjugated aromatic structure.
• Corrosion Inhibitor Formulation: The phosphonate group can contribute to formulations designed to inhibit scale and corrosion in industrial water systems.
• Research & Development: A valuable building block in organic synthesis and materials science research for creating novel functional molecules.

Basic Information

Product Name	5-Acetamido-4-Hydroxy-3-[(3-Phosphonophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Ammonium Sodium Salt
CAS No.	85068-62-8
Molecular Formula	C18H18N4O11PS2•xNa•yNH4
Molecular Weight	Contact for details
Synonyms	5-Acetamido-4-hydroxy-3-[(3-phosphonophenyl)azo]naphthalene-2,7-disulfonic acid ammonium sodium salt; Azo dye intermediate 85068-62-8; 3-[(3-Phosphonophenyl)azo]-5-acetamido-4-hydroxynaphthalene-2,7-disulfonic acid ammonium sodium salt; Phosphonated azo dye salt; C.I. Mordant Yellow; Acid Mordant Yellow (related class); Ammonium sodium 5-acetamido-4-hydroxy-3-[(3-phosphonophenyl)diazenyl]naphthalene-2,7-disulfonate
EINECS	Contact for details

Quality Control

Our production of 5-Acetamido-4-Hydroxy-3-[(3-Phosphonophenyl)Azo]Naphthalene-2,7-Disulphonic Acid, Ammonium Sodium Salt adheres to a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Brownish-red to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution
pH (1% Solution)	6.0 - 8.0

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