Description

Azobis(Isoheptonitrile) CAS NO 28604-91-3 is a highly efficient, low-temperature azo initiator widely used in free-radical polymerization processes. Its primary value lies in its ability to generate free radicals at moderate temperatures, enabling precise control over polymer chain initiation and molecular weight. This compound is essential for manufacturers in the polymer and plastics industries, particularly for producing specialty resins, synthetic rubbers, and high-performance acrylics where controlled polymerization is critical.

Application

• Polymerization Initiator: Primary use as a free-radical initiator for the synthesis of polyvinyl chloride (PVC), polymethyl methacrylate (PMMA), and polystyrene (PS).
• Acrylic Resin Production: Key component in manufacturing acrylic sheets, molding powders, and coatings requiring high clarity and weather resistance.
• Synthetic Rubber Manufacturing: Used in the production of nitrile rubber (NBR) and other elastomers for automotive and industrial applications.
• Adhesive & Sealant Formulation: Serves as a curing agent in the production of anaerobic adhesives and acrylic-based structural sealants.
• Foam Production: Acts as a blowing agent in the creation of expanded polymers and foamed plastics.
• Cross-linking Agent: Employed in the cross-linking of polyethylene and other polyolefins to enhance thermal and chemical stability.
• Chemical Intermediate: Used in organic synthesis for the introduction of nitrile groups and in research-scale radical reactions.

Basic Information

Product Name	Azobis(Isoheptonitrile)
CAS No.	28604-91-3
Molecular Formula	C14H24N4
Molecular Weight	248.37 g/mol
Synonyms	2,2'-Azobis(2,4-dimethyl-4-methoxyvaleronitrile); 2,2'-Azobis(2,4-dimethyl-4-methoxypentanenitrile); 2,2'-Azobis(2,4-dimethylvaleronitrile) derivative; VAZO® 52; V-52; AIVN; Low-Temperature Azo Initiator V-52; 2-(1-Cyano-1-methylethyl)azo-2,4-dimethyl-4-methoxyvaleronitrile
EINECS	Contact for details

Quality Control

Our Azobis(Isoheptonitrile) is manufactured under strict quality management systems to ensure batch-to-batch consistency and reliability. Each lot undergoes comprehensive analytical testing, including assay by HPLC, impurity profiling, and residual solvent analysis, to meet stringent industry specifications. Certificates of Analysis (COA) documenting purity, identity, and key physical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at temperatures between 2°C and 8°C (refrigerated). Due to its nature as an easily oxidized compound, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term stability. Keep away from heat, sparks, open flames, and incompatible materials.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	40 - 50 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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