2,2'-Azobis(2-methylpropionitrile)

Also known as: 2,2'-(E)-Diazene-1,2-diylbis(2-methylpropanenitrile), 2,2'-Azo-bis(isobutyronitrile), 2,2'-Azobis(isobutyronitrile), 2,2'-Azobis[2-methylpropanenitrile], 2,2'-Azobisisobutyronitrile, 2,2'-Azodiisobutyronitrile, 2,2'-Dimethyl-2,2'-azodipropionitrile, 2,2'-[(E)-1,2-Diazenediyl]bis(2-methylpropanenitrile), 2,2'-azo-bis-isobutyronitrile, 2,2'-azo-bisisobutyronitrile, 2,2'-azobis(isobutylonitrile), 2,2'-azobis-(2-methylpropionitrile), 2,2'-azobis-2-methylpropanenitrile, 2,2'-dicyano-2,2'-azopropane, 2,2-azobis(isobutyronitrile), 2,2′-azobis(2-methylpropionitrile), 2,2′-azobis(isobutyronitrile), 2,2′-azobisisobutyronitrile, A,A'-AZOISOBUTYRONITRILE, AIBN

2,2'-Azobis(2-methylpropionitrile) (CAS 78-67-1) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H12N4 and a molecular weight of 164.208 g/mol. Key properties include a melting point of 102-104 °C (dec.)(lit.), a boiling point of 236.2±25.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 96.6±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H304 and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

78-67-1

Jingsj CID

J-26590-2

Molecular Formula

C₈H₁₂N₄

Molecular Weight

164.208 g/mol

Category

Nitrogen Compounds

Last updated

8/21/2026