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V-70 Azo Initiator

 V-70 Azo Initiator


  • solvent-soluble azo initiator having low decomposition temperature.
    An alternative to photo reaction as radical generator.
  • soluble in various solvents.
  • With highest polymerization activity among azo initiators available in Wako.
  • 10 hour half-life decomposition temperature, 30°C

Chemical Name

2,2'-Azobis(4-methoxy-2.4-dimethyl valeronitrile)

CAS NO. 15545-97-8
Molecular weight = 308.42


Appearance white to slightly brown crystalline powder
Melting point 50-96°C
Activation energy 1.15X105 J/mol
10 hour half-life decomposition temperature 30°C(in toluene)
Solubility soluble in toluene or acetone
very slightly soluble in methanol
insoluble in water

Packaging and Storage Condition

  • 12.5kgX2
  • Keep under-10°C

Related Regulations and Safety Data

    TSCA inventory listed
    EINECS No. 239-593-8
    Law concerning the Examination and Regulation of Manufacture, etc. of Chemical Substances existing chemical substances 2-1542
    Occupational Health and Safety Law official announcement chemical substance
    Mutation data mutagenicity test using microbe negative
    Oral toxicity data
    mouse(male) 2028mg/kg,
    mouse(female) 2900mg/kg