4,4′-Azo-bis(4-cyanovaleric acid), (∼18% H₂O) 98%

Supplier: Thermo Scientific
Danger

H59611.14 H59611.22
ALFAH59611.14EA 144 SGD
ALFAH59611.14 ALFAH59611.22
4,4′-Azo-bis(4-cyanovaleric acid), (∼18% H₂O) 98%
4,4′-Azo-bis(4-cyanovaleric acid)

4,4'-Azobis(4-cyanovaleric acid) is used as a free radical imitator in polymer synthesis such as polyvinyl chloride, polyacrylonitrile, polyvinyl alcohol, and synthetic fibres.


  • Free radical imitator
  • Blowing agent for plastics and elastomers


It is utilised for both heterogeneous and homogenous free-radical polymerisations and as an initiator in reversible addition-fragmentation chain transfer polymerisation (RAFT). It is also used as a blowing agent for plastics and elastomers.


Caution: Light sensitive. Incompatible with strong oxidising agents.

Formula: C₁₂H₁₆N₄O₄
MW: 280,284 g/mol
Melting Pt: 118…125 °C (dec.)
Storage Temperature: Refrigerator
MDL Number: MFCD00002799
CAS Number: 2638-94-0
EINECS: 220-135-0
UN: 1325
ADR: 4.1,II

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Specification Test Results

Solubility Soluble in water
Sensitivity Light sensitive

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