Description

4-Hydroxy-3,5-Diiodobenzenesufonic Acid Dihydrate, Sodium Salt, >95% is a high-purity iodinated aromatic compound primarily used as a key synthetic intermediate and analytical reagent. This product matters for its role in producing specialized chemicals, including contrast agents and pharmaceutical actives, where precise halogenation is critical. It is needed by research institutions, pharmaceutical developers, and fine chemical manufacturers engaged in advanced organic synthesis and diagnostic applications.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of iodinated contrast media for X-ray and CT imaging.
• Chemical Synthesis: Used as a specialized reagent for introducing iodine substituents into complex organic molecules.
• Research & Development: Serves as a standard or starting material in life science research for developing new diagnostic compounds.
• Analytical Chemistry: May be employed as a reference standard in chromatographic methods for quality control.
• Fine Chemical Production: Utilized in the manufacture of other iodinated benzenesulfonic acid derivatives for various industrial applications.

Basic Information

Item	Details
Product Name	4-Hydroxy-3,5-Diiodobenzenesufonic Acid Dihydrate, Sodium Salt, >95%
CAS No.	6160-08-3
Molecular Formula	C6H2I2NaO4S · 2H2O
Molecular Weight	515.94 g/mol (Anhydrous basis: 479.89 g/mol)
Synonyms	Sodium 4-Hydroxy-3,5-diiodobenzenesulfonate Dihydrate; 3,5-Diiodo-4-hydroxybenzenesulfonic Acid Sodium Salt Dihydrate; Benzenesulfonic acid, 3,5-diiodo-4-hydroxy-, sodium salt, dihydrate; Sodium 3,5-Diiodosalicylsulfonate Dihydrate; 3,5-Diiodo-4-hydroxybenzenesulfonate Sodium Salt; Diodone Intermediate; Iodinated Benzenesulfonate Salt
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-3,5-Diiodobenzenesufonic Acid Dihydrate, Sodium Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the specified >95% purity grade. A comprehensive Certificate of Analysis (COA) detailing all test results 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 (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	> 95.0%
Water Content (KF)	~ 7.0% (Theoretical for Dihydrate)
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%

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