Q-1301 is a nitrosamine inhibitor which powerfully inhibits polymerizations even with very small dosages. It can be effectively used for purifications and for storage of highly reactive monomers.

Chemical Name

N-Nitorosophenylhydroxylamine aluminium salt

CAS No.: 15305-07-4
Molecular weight: 438.33

Physical characteristics

Appearance White to light yellow brown powder
Melting/freezing point ≥ 160° C
Solubility Soluble in toluene, tetrahydrofuran and chloroform
Slightly soluble in methanol
Insoluble in water


Main Applications

  • Polymerization reaction inhibitor for thermal and radical polymerization, distillation, popcorn polymer formation


  • EINECS No.: 239-341-7
  • REACH: n/a


Store under 10°C. Protect against heat. Keep only in original container.

Safety information

Serious Health Hazard

For specific information on the safe handling of the product, please refer to the material safety data sheet (MSDS) which is available on request.