Description

2-Naphthalenesulfinic Acid, Sodium Salt is a versatile organic salt widely utilized as a key intermediate in fine chemical synthesis. Its primary value lies in its role as a sulfonating agent and building block for creating more complex molecules, particularly dyes and pigments. This compound is essential for manufacturers and R&D laboratories in the chemical, pharmaceutical, and specialty materials sectors seeking reliable, high-purity intermediates.

Application

• Intermediate in the synthesis of dyes, pigments, and optical brighteners.
• Building block for pharmaceutical active ingredients and agrochemicals.
• Research and development reagent in organic chemistry and material science.
• Precursor for specialty surfactants and functional polymers.
• Used in electroplating baths and metal surface treatment formulations.
• Component in photographic chemicals and imaging materials.

Basic Information

Product Name	2-Naphthalenesulfinic Acid, Sodium Salt
CAS No.	63735-42-2
Molecular Formula	C10H7NaO2S
Molecular Weight	214.21 g/mol
Synonyms	Sodium 2-Naphthalenesulfinate; Sodium 2-Naphthylsulfinate; 2-Naphthalenesulfinic Acid Sodium Salt; 2-Naphthylsulfinic Acid Sodium Salt; Sodium β-Naphthalenesulfinate; 2-Naphthalenesulfinate Sodium Salt; NSC 403119
EINECS	Contact for details

Quality Control

Our 2-Naphthalenesulfinic Acid, Sodium Salt is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity and consistency. Certificates of Analysis (COA) detailing the results of identity, assay, and impurity tests are provided with every shipment to guarantee reliable performance in your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers must be kept tightly sealed and consideration should be given to storage under an inert atmosphere for long-term preservation.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition (Sulfated Ash)	Contact for details

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