Description

Sodium 2,8-Dihydroxynaphthalene-6-Sulfonate is a high-purity, water-soluble naphthalene derivative widely used as a key intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its sulfonate and dihydroxy functional groups make it a versatile building block for creating compounds with specific color, chelating, and surface-active properties. This product is essential for manufacturers in the dyestuff, textile, and fine chemical industries seeking reliable and consistent raw materials for their production processes.

Application

• Dye and Pigment Intermediate: A crucial precursor in the synthesis of azo dyes, acid dyes, and reactive dyes for textiles, leather, and paper.
• Complexing Agent: Used in analytical chemistry and water treatment formulations due to its ability to chelate metal ions.
• Photographic Chemical: Serves as a component in certain photographic developers and couplers.
• Chemical Synthesis: Acts as a versatile building block for producing more complex naphthalene-based sulfonates and specialty organic compounds.
• Research & Development: Utilized in academic and industrial R&D labs for developing new materials and studying reaction mechanisms.

Basic Information

Product Name	Sodium 2,8-Dihydroxynaphthalene-6-Sulfonate
CAS No.	83732-66-5
Molecular Formula	C₁₀H₇NaO₆S
Molecular Weight	278.21 g/mol
Synonyms	2,8-Dihydroxynaphthalene-6-sulfonic Acid Sodium Salt; 6-Sulfo-2,8-dihydroxynaphthalene Sodium Salt; Sodium 2,8-Dihydroxy-6-naphthalenesulfonate; 2,8-Dihydroxy-6-naphthalenesulfonic Acid Sodium Salt; 2,8-Naphthalenediol-6-sulfonic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium 2,8-Dihydroxynaphthalene-6-Sulfonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) documenting key parameters is provided with each shipment to guarantee it meets your technical 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	Light yellow to beige powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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