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Substance Name: Hydrocarbons, C4, 1,3-butadiene-free, polymd., dibutylene fraction
RN: 91052-99-2


  • A complex combination of hydrocarbons obtained from distillation of the butadiene-free C4 fraction of a naphtha steam-cracking process. It consists predominantly of branched olefinic hydrocarbons having carbon numbers of C8, C12, C16 and C20 and boiling in the range of approximately 105 degrees C to 120 degrees C (221 degrees F to 248 degrees F).
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Names and Synonyms


  • EC 293-261-7
  • EINECS 293-261-7

Systematic Name

  • Hydrocarbons, C4, 1,3-butadiene-free, polymd., dibutylene fraction

Registry Numbers

CAS Registry Number

  • 91052-99-2

System Generated Number

  • 0091052992