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Substance Name: Residues (petroleum), heavy olefin vacuum
RN: 68478-18-2


  • TSCA Definition 2017: A complex residuum from the vacuum distillation of heavy olefin streams. It consists of alcohols, olefins and paraffins having carbon numbers predominantly greater than C24.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • EINECS 270-798-5
  • Mixed heavy olefin stream residium

Systematic Names

  • Residues (petroleum), heavy olefin vacuum
  • Residues, petroleum, heavy olefin vacuum

Registry Numbers

CAS Registry Number

  • 68478-18-2

System Generated Number

  • 0068478182