Description

Sodium 6-Hydroxynaphthalene-2-Sulfonate Hydrate(1:1:X) is a high-purity, water-soluble naphthalene derivative that serves as a critical intermediate and functional additive. Its value lies in its dual functionality from the sulfonate and phenolic hydroxyl groups, enabling applications in synthesis, dye chemistry, and material science. This compound is essential for manufacturers and R&D teams in the pharmaceutical, dye and pigment, and specialty chemical industries seeking reliable, high-quality intermediates for advanced synthesis.

Application

• Dye and Pigment Intermediate: A key building block for synthesizing azo dyes, acid dyes, and reactive dyes, providing color fastness and solubility.
• Pharmaceutical Synthesis: Used as a versatile intermediate in the production of certain APIs (Active Pharmaceutical Ingredients) and diagnostic agents.
• Chemical Research & Development: Serves as a model compound or starting material for novel organic synthesis and material science projects.
• Surfactant and Detergent Formulation: Acts as a hydrotrope or coupling agent in specialized cleaning and industrial formulations due to its sulfonate group.
• Photographic Chemical: Can be utilized in the synthesis of certain photographic chemicals and developers.
• Corrosion Inhibitor Component: Incorporated into formulations for metal treatment and cooling water systems.

Basic Information

Product Name	Sodium 6-Hydroxynaphthalene-2-Sulfonate Hydrate(1:1:X)
CAS No.	825652-02-6
Molecular Formula	C₁₀H₇NaO₄S·xH₂O
Molecular Weight	246.21 (Anhydrous basis) + xH₂O
Synonyms	6-Hydroxy-2-naphthalenesulfonic acid sodium salt hydrate; 2-Naphthol-6-sulfonic acid sodium salt; Sodium 2-naphthol-6-sulfonate; 6-Hydroxynaphthalene-2-sulfonic acid sodium salt; Sodium 6-hydroxy-2-naphthalenesulfonate; 1-Naphthol-6-sulfonic acid sodium salt (alternate numbering); Schaeffer's salt sodium salt (hydrate)
EINECS	Contact for details

Quality Control

Our Sodium 6-Hydroxynaphthalene-2-Sulfonate Hydrate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and compliance with agreed-upon specifications. Certificates of Analysis (COA) detailing identity, assay, impurity profile, and other critical parameters are provided to guarantee traceability and batch-to-batch reliability for your processes.

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 nature, the container must be kept tightly sealed after each use to minimize exposure to atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water Content (KF)	≤ 12.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility (1% in Water)	Clear, colorless to pale yellow solution
pH (5% aqueous solution)	6.0 - 8.0

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