Product Name:2,2-Azobisisobutyronitrile

Other Name:AIBN; 2,2′-Azobis(2-methylpropionitrile); 2,2′-Diazoisobutyronitrile

CAS No.: 78-67-1

EINECS No.: 201-132-3

Molecular Formula: C8H12N4

Basic Information

Product Name 2,2-Azobisisobutyronitrile
Other Name AIBN



CAS No. 78-67-1
EINECS No. 201-132-3
Molecular Formula C8H12N4
Molecular Weight 164.21
Fusion Point 102-104℃
Boiling Point 236.2℃
Flash Point 96.6℃
Density 1.11g/cm³
Water Solubility Insoluble
Appearance White crystalline powder
HS Code 2927000090
Application Used as blowing agent of rubber and plastic, polymerization initiator, can also be used in organic synthesis


Azobisisobutyronitrile is an oil-soluble azo initiator.The azo initiator has a stable reaction, is a first-order reaction, has no side reactions, and is relatively easy to control, so it is widely used in the research and production of polymers. Such as vinyl chloride, vinyl acetate, acrylonitrile and other monomer polymerization initiators, can also be used as polyvinyl chloride, polyolefin, polyurethane, polyvinyl alcohol, acrylonitrile and butadiene and styrene copolymer, polyisocyanate, polyacetate Blowing agent for vinyl ester, polyamide and polyester. In addition, it can also be used in other organic synthesis.

Package & Storage

Packing: 20kg/Carton

Storage: Keep the warehouse ventilated, low temperature and dry. Store it separately from the oxidants.