Description

5-Hydroxy-1-Naphthalenesulfonic Acid Sodium Salt is a high-purity naphthalene derivative essential as a key intermediate in the synthesis of dyes, pigments, and specialty chemicals. Its sulfonic acid sodium salt form offers excellent water solubility and stability, making it a versatile building block for industrial processes. This compound is particularly valuable for manufacturers in the dye, pharmaceutical, and agrochemical sectors seeking reliable, high-quality raw materials for complex synthesis.

Application

• Dye and Pigment Intermediate: A crucial precursor for the synthesis of azo dyes, acid dyes, and other colorants.
• Pharmaceutical Synthesis: Used as a building block in the manufacture of certain active pharmaceutical ingredients (APIs) and diagnostic agents.
• Agrochemical Production: Serves as an intermediate in the synthesis of specialized pesticides and herbicides.
• Chemical Research & Development: Employed in organic synthesis and as a standard or reagent in laboratory settings.
• Photographic Chemicals: Can be used in the formulation of certain photographic developers and sensitizers.
• Corrosion Inhibitor Formulation: Acts as a component in some industrial water treatment and metalworking formulations.

Basic Information

Product Name	5-Hydroxy-1-Naphthalenesulfonic Acid Sodium Salt
CAS No.	79873-34-0
Molecular Formula	C10H7NaO4S
Molecular Weight	246.21 g/mol
Synonyms	1-Naphthalenesulfonic acid, 5-hydroxy-, monosodium salt; Sodium 5-hydroxy-1-naphthalenesulfonate; 5-Hydroxynaphthalene-1-sulfonic acid sodium salt; 1,5-Naphthalenediol monosulfonate sodium salt; 5-Hydroxy-1-naphthalenesulfonate sodium; 5-Hydroxy-1-naphthalenesulphonic acid sodium salt; 5-Hydroxy-1-naphthalenesulfonic acid, sodium salt; NSC 403764
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-1-Naphthalenesulfonic Acid Sodium Salt is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability, consistency, and compliance with 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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details
pH (5% solution)	Contact for details

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