Description

3,3'-Azobis[6-[2-(4-Nitro-2-Sulfophenyl)Ethenyl]Benzenesulfonic Acid] is a specialized, high-purity azo compound primarily utilized as a photoinitiator and polymerization catalyst. This compound matters for its ability to generate free radicals upon exposure to specific light wavelengths, enabling precise control over polymerization reactions in advanced material synthesis. It is essential for manufacturers in the photoresist, specialty polymer, and advanced coating industries who require reliable and efficient initiation systems for UV-curable applications.

Application

• Photoinitiator for UV-Curable Systems: A key component in formulations for UV-curable inks, coatings, and adhesives, where it initiates rapid polymerization upon exposure to ultraviolet light.
• Photoresist and Microelectronics: Used in the production of photoresists for semiconductor manufacturing and printed circuit boards (PCBs), facilitating high-resolution patterning.
• Specialty Polymer Synthesis: Serves as a radical initiator in the controlled polymerization of acrylics, styrenics, and other specialty monomers to create polymers with specific molecular weights and properties.
• Advanced Material Research: Employed in R&D laboratories for developing new light-sensitive materials, including holographic recording media and optical data storage components.
• Cross-linking Agent: Functions as a cross-linking initiator in the production of hydrogels, ion-exchange resins, and other network polymers.

Basic Information

Product Name	3,3'-Azobis[6-[2-(4-Nitro-2-Sulfophenyl)Ethenyl]Benzenesulfonic Acid]
CAS No.	16473-79-3
Molecular Formula	C28H18N4O14S4
Molecular Weight	770.72 g/mol
Synonyms	Bis[6-[2-(4-Nitro-2-sulfophenyl)ethenyl]benzenesulfonic acid] 3,3'-azobis; 3,3'-[Diazene-1,2-diylbis(6-{2-[4-nitro-2-sulfophenyl]ethenyl}benzene-1-sulfonic acid)]; 3,3'-Azobis(6-styryl-1,3-benzenedisulfonic acid) derivative; Photoinitiator 16473-79-3; Azo-based UV initiator; 4,4'-Azobis(4-cyanovaleric acid) analog (sulfonated nitro-substituted); Disulfonated azo bis(styrylbenzene) derivative
EINECS	Contact for details

Quality Control

Our production of 3,3'-Azobis[6-[2-(4-Nitro-2-Sulfophenyl)Ethenyl]Benzenesulfonic Acid] adheres to a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, UV-Vis spectroscopy for photoactivity validation, and elemental analysis. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

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 sealed under dry conditions to prevent degradation. Keep away from incompatible materials such as strong reducing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Photoactivity (UV-Vis)	Conforms
Solubility (in water)	Partially soluble, forms colloidal dispersion

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