Description

Sodium 2-Acetamido-5-Hydroxynaphthalene-7-Sulphonate CAS NO 42360-29-2 is a specialized naphthalene-based sulfonate salt widely utilized as a key intermediate in the synthesis of dyes and pigments. Its molecular structure is engineered to provide excellent coupling properties and chromophore development, making it a critical component for achieving specific color shades and fastness. This compound is essential for manufacturers in the dye and pigment industries, as well as for research institutions developing advanced colorants and functional materials.

Application

• Primary intermediate in the manufacture of azo dyes and pigments, particularly for textiles and leather.
• Key precursor for synthesizing reactive dyes used in cotton and cellulose fiber dyeing.
• Used in the production of colorants for inks, including printing and packaging applications.
• Intermediate for specialty pigments in plastics and coatings industries.
• Research and development of novel chromophores and functional dyes for optical applications.
• Potential use as a biochemical reagent or staining agent in laboratory settings.

Basic Information

Product Name	Sodium 2-Acetamido-5-Hydroxynaphthalene-7-Sulphonate
CAS No.	42360-29-2
Molecular Formula	C₁₂H₁₀NNaO₆S
Molecular Weight	319.26 g/mol
Synonyms	2-Acetamido-5-hydroxynaphthalene-7-sulfonic acid sodium salt; 7-Acetamido-4-hydroxynaphthalene-2-sulfonic acid sodium salt; Sodium 7-acetamido-4-hydroxy-2-naphthalenesulfonate; 5-Hydroxy-2-acetamidonaphthalene-7-sulfonic acid sodium salt; N-Acetyl H-acid sodium salt; Azoic Coupling Component 18 sodium salt; Azoic Diazo Component 18 sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 2-Acetamido-5-Hydroxynaphthalene-7-Sulphonate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. The product undergoes rigorous analytical testing, including HPLC for assay and related substance analysis. Certificates of Analysis (COA) documenting identity, purity, and other critical parameters are provided with each shipment and 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)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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