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Substance Name: Residues (petroleum), hydrodesulfurized vacuum
RN: 64742-85-4


  • TSCA Definition 2018: A complex combination of hydrocarbons obtained by treating a vacuum residuum with hydrogen in the presence of a catalyst under conditions primarily to remove organic sulfur compounds. It consists of hydrocarbons having carbon numbers predominantly greater than C34 and boiling approximately above (

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • EC 265-188-0
  • EINECS 265-188-0

Systematic Names

  • Residues (petroleum), hydrodesulfurized vacuum
  • Residues, petroleum, hydrodesulfurized vacuum

Superlist Name

  • Residues, (petroleum), hydrodesulfurized vacuum

Registry Numbers

CAS Registry Number

  • 64742-85-4

System Generated Number

  • 0064742854