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Substance Name: Fuel oil, residual
RN: 68476-33-5


  • TSCA Definition 2018: The liquid product from various refinery streams, usually residues. The composition is complex and varies with the source of the crude oil.

Molecular Formula

  • Unspecified

Classification Codes

Classification Codes

  • Tumor Data

Superlist Classification Code

  • Overall Carcinogenic Evaluation: Group 2B
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Links to Resources

NLM Resources (File Locators)

Regulatory Agencies (Superlist Locators)

Other Resources (Internet Locators)

Names and Synonyms


  • EC 270-675-6
  • EINECS 270-675-6
  • Fuel oil, residual
  • IFO-180
  • Residual fuel oil
  • Residual(heavy) fuel oil

Systematic Name

  • Fuel oil, residual

Superlist Name

  • Fuel oil, residual

Registry Numbers

CAS Registry Number

  • 68476-33-5

System Generated Number

  • 0068476335