Description

Sodium 5-Hydroxynaphthalene-1-Sulphonate is a versatile aromatic sulfonate salt widely used as a key intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its molecular structure provides excellent coupling properties and water solubility, making it indispensable for creating vibrant and stable colorants. This compound is essential for manufacturers in the dye, textile, pharmaceutical, and agrochemical industries seeking reliable and high-purity intermediates for their production processes.

Application

• Dye and Pigment Intermediate: A crucial coupling component in the production of azo dyes and pigments for textiles, leather, and paper.
• Pharmaceutical Synthesis: Serves as a building block in the manufacture of certain pharmaceutical compounds and active ingredients.
• Agrochemical Formulations: Used in the synthesis of specific herbicides, pesticides, and other crop protection agents.
• Chemical Research & Development: Employed as a standard or reagent in organic synthesis and analytical chemistry laboratories.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic developers and sensitizers.
• Corrosion Inhibitor Precursor: Acts as an intermediate in the production of specialty chemicals used for metal surface treatment and corrosion prevention.

Basic Information

Product Name	Sodium 5-Hydroxynaphthalene-1-Sulphonate
CAS No.	5419-77-2
Molecular Formula	C₁₀H₇NaO₄S
Molecular Weight	246.21 g/mol
Synonyms	5-Hydroxy-1-naphthalenesulfonic acid sodium salt; 1-Naphthol-5-sulfonic acid sodium salt; Sodium 1-naphthol-5-sulfonate; 5-Hydroxynaphthalene-1-sulfonic acid sodium salt; 5-Hydroxy-1-naphthalenesulphonate sodium; NSC 403754; 1-Naphthol-5-sulphonic acid sodium salt; 5-Hydroxy-1-naphthalenesulphonic acid sodium salt
EINECS	226-560-1

Quality Control

Our Sodium 5-Hydroxynaphthalene-1-Sulphonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided with every shipment to guarantee traceability and compliance with your quality requirements.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light beige powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Clear solution

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