Description

Disodium 4-(Acetylamino)-5-Hydroxynaphthalene-1,7-Disulphonate is a high-purity, water-soluble naphthalene derivative primarily used as a key intermediate in the synthesis of dyes and pigments. This compound is valued for its ability to impart specific color properties and act as a coupling agent in azo dye manufacturing. It is essential for industries requiring precise and stable colorants, such as textile dyeing, ink production, and specialty chemical synthesis.

Application

• Primary Intermediate for Azo Dyes: Acts as a crucial coupling component in the production of acid dyes and direct dyes for textiles like wool, silk, and nylon.
• Pigment Manufacturing: Used in the synthesis of organic pigments for inks, paints, and coatings, providing good lightfastness and color strength.
• Specialty Chemical Synthesis: Serves as a building block for more complex molecules in pharmaceutical and agrochemical research.
• Laboratory Reagent: Employed as a standard or reagent in analytical chemistry and colorimetric assays.
• Functional Dye Production: Potential use in creating dyes for non-textile applications, such as in paper coloring or biological staining.

Basic Information

Product Name	Disodium 4-(Acetylamino)-5-Hydroxynaphthalene-1,7-Disulphonate
CAS No.	83763-32-0
Molecular Formula	C₁₂H₉NNa₂O₈S₂
Molecular Weight	429.31 g/mol
Synonyms	4-Acetamido-5-hydroxy-1,7-naphthalenedisulfonic Acid Disodium Salt; 5-Hydroxy-4-(acetylamino)-1,7-naphthalenedisulfonic Acid Disodium Salt; 1,7-Naphthalenedisulfonic Acid, 4-(acetylamino)-5-hydroxy-, Disodium Salt; Disodium 4-Acetamido-5-hydroxynaphthalene-1,7-disulfonate; N-Acetyl H-Acid Disodium Salt; Azo Coupling Component; Acid Dye Intermediate
EINECS	Contact for details

Quality Control

Our Disodium 4-(Acetylamino)-5-Hydroxynaphthalene-1,7-Disulphonate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Production adheres to relevant industrial standards, and each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. Certificates of Analysis (COA) are available upon request.

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 to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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