Description

3-Sulfobenzenediazonium is a specialized diazonium salt derivative, a key intermediate in advanced organic synthesis. Its primary commercial value lies in its ability to introduce the sulfonic acid functional group into aromatic systems via diazonium coupling reactions, enabling the creation of dyes, pigments, and functional materials. This compound is essential for manufacturers in the fine chemical, specialty dye, and advanced material sectors seeking to develop sulfonated products with specific colorant or surfactant properties.

Application

• Key intermediate in the synthesis of azo dyes and pigments, particularly for creating water-soluble sulfonated colorants.
• Precursor for manufacturing optical brightening agents and fluorescent whitening agents used in paper and detergent industries.
• Building block for specialty surfactants and ion-exchange materials due to the introduced sulfonate group.
• Used in research and development of pharmaceutical intermediates requiring specific aromatic sulfonation.
• Intermediate for the production of corrosion inhibitors and functional additives for industrial coatings.
• Reagent in the preparation of metal-complex dyes and advanced polymeric materials.

Basic Information

Product Name	3-Sulfobenzenediazonium
CAS No.	17405-03-7
Molecular Formula	C6H5N2O3S
Molecular Weight	185.18 g/mol
Synonyms	3-Diazoniobenzenesulfonate; m-Sulfobenzenediazonium Salt; Benzenesulfonic acid, 3-diazo-; Diazonium Salt of 3-Sulfobenzoic Acid; 3-Sulfodiazobenzene; m-Diazobenzenesulfonic Acid; 3-Carboxybenzenediazonium-4-sulfonate (related form); 1-Diazo-3-sulfobenzene
EINECS	Contact for details

Quality Control

Our 3-Sulfobenzenediazonium is manufactured under strict process controls to ensure batch-to-batch consistency and high reactivity. Each lot undergoes rigorous analytical testing, including assay by titration and impurity profiling, to confirm it meets precise technical specifications. Certificates of Analysis (COA) documenting purity, identity, and stability are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This material is easily oxidized and should be handled under an inert atmosphere when appropriate. Keep away from heat, sparks, and incompatible materials.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	Min. 95%
Water Content (KF)	Max. 2.0%
Solubility Test	Soluble in water, polar organic solvents

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