714887

2,2′-Azobis(2-methylpropionitrile) solution

0.2 M in toluene

• Synonym(s): α,α,′-Azoisobutyronitrile solution, AIBN solution
• Empirical Formula (Hill Notation): C₈H₁₂N₄
• CAS Number: 78-67-1
• Molecular Weight: 164.21
• MDL number: MFCD00013808
• UNSPSC Code: 12352102
• PubChem Substance ID: 329763322
• NACRES: NA.22

Properties

• form: liquid
• concentration: 0.2 M in toluene
• refractive index: n20/D 1.495
• density: 0.858 g/mL at 25 °C
• functional group: azo; nitrile
• storage temp.: 2-8°C
• SMILES string: CC(C)(\N=N\C(C)(C)C#N)C#N
• InChI: 1S/C8H12N4/c1-7(2,5-9)11-12-8(3,4)6-10/h1-4H3/b12-11+
• InChI key: OZAIFHULBGXAKX-VAWYXSNFSA-N

Description

Application

2,2′-Azobis(2-methylpropionitrile) (AIBN) is a radical initiator. AIBN solution can be used to initiate radical-induced reactions, specifically free-radical polymerizations. It can be used in:

• Synthesis of styrene-vinyl pyridine diblock copolymers by reversible addition-fragmentation chain transfer (RAFT) polymerization.
• Preparation of silicon oxycarbide glasses.
• Synthesis of poly [N-(p-vinyl benzyl) phthalimide] for the preparation of titanium dioxide composites for electrophoretic displays.

Safety Information

• Pictograms: GHS02,GHS08,GHS07
• Signal Word: Danger
• Hazard Statements: H225,H304,H315,H336,H361d,H373,H412
• Precautionary Statements: P202 - P210 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3
• Target Organs: Central nervous system
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 3
• Flash Point(F): 39.9 °F
• Flash Point(C): 4.4 °C
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves