Azo polymerization initiators


CAS : 195520-32-2

non-nitrile high-temperature type oil soluble

Plastics manufacturing


VAm-110 is an oil-soluble azo polymerization initiator which is active in high temperatures, the 10-hour half-life temperature is as high as 110 ℃. This product has characteristics which show high solubility to different organic solvents.

  • Non-nitrile azo initiator having high decomposition temperature
  • Freely soluble in various organic solvents
  • 10 Hour half-life decomposition temperature: 110℃
Structural formula of 2,2'-Azobis(N-butyl-2-methylpropionamide)
Chemical name 2,2'-Azobis(N-butyl-2-methylpropionamide)
CAS RN® 195520-32-2
Molecular weight 312.46
Molecular formula C16H32N4O2

Physical characteristics

slightly yellow powder
Melting point/freezing point 65℃
10hour half-life decomposition temperature 110℃(in ethyl benzene)
Activation energy 141.1 kJ/mol
Frequency factor (ln A) 33.38

water : insoluble.
methanol, ethyl acetate, toluene, methyl ethyl ketone : freely soluble.

SADT 70℃

*SADT: Self-accelerating decomposition temperature

Packaging & Storage conditions

Packaging 5kg / 500g
Storage conditions keep under 25℃

Related laws and regulations

TSCA Not Listed
EINECS Not Listed
REACH the substance is exempted from the obligation to register