Description

1,1'-Azobis(Cycloheptanecarbonitrile) is a specialized, low-temperature azo initiator widely used in free-radical polymerization processes. This compound matters for its ability to generate free radicals efficiently at moderate temperatures, enabling precise control over polymer molecular weight and structure. It is primarily needed by manufacturers in the polymer and plastics industries, particularly for producing high-performance acrylics, styrenics, and other specialty resins where controlled initiation is critical.

Application

• Free-Radical Polymerization Initiator: A key component for initiating the polymerization of vinyl monomers such as methyl methacrylate (MMA) and styrene.
• Production of Specialty Polymers: Used in the synthesis of high-purity acrylic polymers, impact modifiers, and block copolymers with controlled architectures.
• Cross-linking Agent: Facilitates the cross-linking of polymer chains in the manufacture of thermosetting resins and elastomers.
• Foaming Agent: Acts as a blowing agent in the production of polymeric foams, generating nitrogen gas upon decomposition.
• Adhesive & Coating Formulations: Employed in UV-curable or thermally initiated systems for coatings, inks, and pressure-sensitive adhesives.
• Research & Development: Serves as a model initiator in academic and industrial R&D for studying polymerization kinetics and mechanisms.

Basic Information

Product Name	1,1'-Azobis(Cycloheptanecarbonitrile)
CAS No.	32773-38-9
Molecular Formula	C16H22N4
Molecular Weight	270.38 g/mol
Synonyms	1,1'-Azobis(cyclohexanecarbonitrile) (common misnomer); 1,1'-Azobis(heptanenitrile); 2,2'-Azobis(2-cycloheptylpropionitrile); Azobiscycloheptanecarbonitrile; Cycloheptanecarbonitrile, 1,1'-azobis-; ACHN; 2,2'-Azobis(2-cycloheptanecarbonitrile); V-40 (trade name reference)
EINECS	Contact for details

Quality Control

Our 1,1'-Azobis(Cycloheptanecarbonitrile) is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity for demanding polymerization applications. Each lot undergoes rigorous analytical testing, including assay and impurity profile analysis. Certificates of Analysis (COA) documenting purity, identity, and performance characteristics are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at temperatures between 15-25°C (59-77°F). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. For long-term storage, consider maintaining under an inert gas atmosphere such as nitrogen or argon to preserve activity.

Specification

Item	Specification
Appearance	White to pale yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	65 - 75 °C
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

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