Description

4-Bromobenzenesulfinic Acid Sodium Salt Dihydrate is a versatile organosulfur compound and a key synthetic intermediate in modern organic chemistry. Its value lies in its role as a crucial building block for introducing the 4-bromobenzenesulfonyl moiety, enabling the synthesis of more complex molecules. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, particularly for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of sulfonamide-based drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Material Science: Serves as a monomer or additive in the development of specialty polymers and advanced materials.
• Cross-Coupling Reactions: Acts as a reagent in palladium-catalyzed coupling reactions (e.g., Suzuki, Heck) to create biaryl structures.
• Chemical Research: A valuable tool in academic and industrial R&D for exploring new synthetic pathways and methodologies.
• Dye and Pigment Manufacturing: Utilized in the synthesis of sulfonated dyes and colorants.

Basic Information

Product Name	4-Bromobenzenesulfinic Acid Sodium Salt Dihydrate
CAS No.	175278-64-5
Molecular Formula	C6H4BrNaO2S · 2H2O
Molecular Weight	273.07 g/mol (Anhydrous basis: 237.05 g/mol)
Synonyms	Sodium 4-Bromobenzenesulfinate Dihydrate; Benzenesulfinic Acid, 4-Bromo-, Sodium Salt, Dihydrate; p-Bromobenzenesulfinic Acid Sodium Salt Dihydrate; 4-Bromobenzene-1-sulfinic Acid Sodium Salt Dihydrate; Sodium p-Bromobenzenesulfinate Dihydrate; 4-Bromophenylsulfinic Acid Sodium Salt Dihydrate; (4-Bromophenyl)sulfinic Acid Sodium Salt Dihydrate
EINECS	Contact for details

Quality Control

Our 4-Bromobenzenesulfinic Acid Sodium Salt Dihydrate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of our global clientele. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. For long-term storage, consider using desiccants or storing under an inert atmosphere to minimize oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	11.0 - 14.0% (Theoretical for Dihydrate: ~13.2%)
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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