2,2′-Azobis(2-methylpropionitrile)
2,2′-Azobis(2-methylpropionitrile) (CAS 78-67-1), with the linear formula (CH₃)₂C(CN)N=NC(CH₃)₂CN and a molecular weight of 164.21 g/mol, is a key organic compound widely employed as a radical initiator. It decomposes upon heating to generate free radicals, making it invaluable in polymerisation processes and organic synthesis. This compound is supplied by Tech Serve Solutions for research and industrial applications.
- IUPAC
- α,α′-Azoisobutyronitrile,AIBN,Azobisisobutyronitrile,Free radical initiator
- Synonyms
- α,α′-AzoisobutyronitrileAIBNAzobisisobutyronitrileFree radical initiator
Polymerisation Initiator
AIBN is a crucial free radical initiator for the polymerisation of vinyl monomers such as styrene, acrylonitrile, and acrylates. Its controlled decomposition rate allows for predictable polymer chain growth and molecular weight distribution.
Organic Synthesis
It serves as a source of free radicals in various organic transformations, including halogenation and radical cyclisation reactions. The generated isobutyronitrile radicals can participate in a range of synthetic pathways.
Research and Development
Utilised in academic and industrial research settings to study reaction mechanisms involving free radicals and to develop novel synthetic methodologies. Its predictable decomposition makes it a reliable tool for kinetic studies.
| Molecular weight | 164.21 |
|---|---|
| Linear formula | (CH3)2C(CN)N=NC(CH3)2CN |
| Assay | ≥98.0% (GC) |
| Grade | purum |
| Density | 0.858 g/mL at 25 °C |
| Refractive index | n20/D 1.495 |
| Concentration | 0.2 M in toluene |
| Melting point | 102-104 °C (dec.)(lit.) |
| Storage temperature | 2-8°C |
| Impurities tested | ≤2% water |
Hazard statements
- H242Heating may cause a fire
- H302Harmful if swallowed
- H332Harmful if inhaled
- H412Harmful to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 3234 4.1 |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | E,Xn |
| Risk statements (R) | 2-11-20/22-52/53 |
| Safety statements (S) | 39-41-47-61 |
| Ignition residue | ≤0.1% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,2′-Azobis(2-methylpropionitrile) primarily used for?
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2,2′-Azobis(2-methylpropionitrile) is primarily used as a free radical initiator in polymerisation reactions and in various organic synthesis procedures.
What is the CAS number and chemical formula for 2,2′-Azobis(2-methylpropionitrile)?
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The CAS number is 78-67-1, and its linear chemical formula is (CH₃)₂C(CN)N=NC(CH₃)₂CN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2′-Azobis(2-methylpropionitrile) with a minimum assay of ≥98.0% (GC), meeting the purum grade. We do not represent this product as USP, BP, or EP grade.
How should 2,2′-Azobis(2-methylpropionitrile) be handled safely?
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This compound is classified with hazards including H242 (Heating may cause a fire) and H302/H332 (Harmful if swallowed or inhaled). Handling requires appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection (e.g., N100 type), and should be conducted in a well-ventilated area, away from heat sources. Storage at 2-8°C is recommended.
Is this product suitable for export or international shipping?
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Yes, 2,2′-Azobis(2-methylpropionitrile) can be packed and exported by Tech Serve Solutions, adhering to all relevant transportation regulations for hazardous materials (UN 3234 4.1).
How can I request a sample or a quote for 2,2′-Azobis(2-methylpropionitrile)?
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To request a sample or a quote, please contact our sales team through the website or by calling our office. Please specify the quantity and your delivery location.
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