Description

Sodium Hydrogen 4-[(4-Aminobenzoyl)Amino]-5-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, functionalized naphthalene disulphonate derivative, serving as a critical intermediate in advanced organic synthesis. Its value lies in the precise combination of amino, hydroxy, and sulphonate functional groups, enabling its use in the production of specialized dyes, pigments, and photoactive compounds. This product is essential for manufacturers in the fine chemical, specialty dye, and advanced material research sectors seeking reliable, high-quality building blocks for complex molecular architectures.

Application

• Key Intermediate for Azo Dyes & Pigments: Serves as a crucial diazo component or coupling agent in the synthesis of high-value, color-fast azo dyes for textiles, inks, and coatings.
• Specialty Chemical Synthesis: Used in the production of complex organic molecules for research and development in pharmaceutical and agrochemical laboratories.
• Functional Material Precursor: Acts as a building block for creating photoactive materials, sensors, or ligands due to its conjugated aromatic system and ionic sulphonate groups.
• Laboratory Reagent: Employed in analytical chemistry and academic research as a standard or reagent for method development and compound studies.

Basic Information

Product Name	Sodium Hydrogen 4-[(4-Aminobenzoyl)Amino]-5-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	83929-49-1
Molecular Formula	C17H13N2NaO9S2
Molecular Weight	476.41 g/mol
Synonyms	5-Amino-4-[(4-aminobenzoyl)amino]-3-hydroxynaphthalene-2,7-disulfonic acid monosodium salt; 4-[(4-Aminobenzoyl)amino]-5-hydroxy-2,7-naphthalenedisulfonic acid monosodium salt; Sodium 4-[(4-aminobenzamido)]-5-hydroxynaphthalene-2,7-disulfonate; 2,7-Naphthalenedisulfonic acid, 4-[(4-aminobenzoyl)amino]-5-hydroxy-, monosodium salt; 83929-49-1; Azo dye intermediate DA-1 (trade name variant); Naphthalene disulfonate derivative
EINECS	Contact for details

Quality Control

Every batch of Sodium Hydrogen 4-[(4-Aminobenzoyl)Amino]-5-Hydroxynaphthalene-2,7-Disulphonate is manufactured under a strict quality management system. We employ advanced analytical techniques including HPLC, IR, and titration to ensure high purity and consistent batch-to-batch performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

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). Due to its hygroscopic nature, the container must be kept sealed to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	Yellow to brownish-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%
Solubility (1% in Water)	Clear, yellow solution

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