Description

2-Nitrobenzenesulfinic Acid Sodium is a versatile organic intermediate and reagent with significant utility in synthetic chemistry. Its value lies in its role as a key building block for the synthesis of more complex sulfonamide and sulfone derivatives, which are crucial in various industrial processes. This compound is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for research, development, and production.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing sulfonamide or sulfone functional groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where the nitro and sulfinate groups enable specific biological activity.
• Dye and Pigment Manufacturing: Serves as an intermediate in the creation of azo dyes and other colored compounds, leveraging its aromatic nitro functionality.
• Polymer Chemistry: Acts as a monomer or modifying agent in the synthesis of specialty polymers with specific thermal or chemical resistance properties.
• Chemical Research & Development: Employed as a reagent in organic synthesis for introducing the sulfinic acid moiety or for further functional group transformations.
• Cross-Coupling Reactions: Utilized in palladium-catalyzed coupling reactions to create biaryl structures important in material science and medicinal chemistry.

Basic Information

Item	Detail
Product Name	2-Nitrobenzenesulfinic Acid Sodium
CAS No.	15898-45-0
Molecular Formula	C6H4NNaO4S
Molecular Weight	209.16 g/mol
Synonyms	Sodium 2-Nitrobenzenesulfinate; Sodium o-Nitrobenzenesulfinate; 2-Nitrobenzenesulfinic Acid Sodium Salt; Benzenesulfinic acid, 2-nitro-, sodium salt; o-Nitrobenzenesulfinic Acid Sodium Salt; Sodium (2-nitrophenyl)sulfinate; 2-Nitrobenzene sulfinic acid Na salt
EINECS	Contact for details

Quality Control

Our 2-Nitrobenzenesulfinic Acid Sodium is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics. Our quality commitment ensures the material meets the high standards required for pharmaceutical and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and easily oxidized; therefore, it should be stored under an inert atmosphere (e.g., nitrogen or argon) when in opened containers to maintain stability and purity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to light brown powder or crystalline solid
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)	≤ 0.5%

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