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Substance Name: Gases (petroleum), benzene unit recycle, hydrogen-rich
RN: 68477-67-8


  • TSCA Definition 2018: A complex combination of hydrocarbons obtained by recycling the gases of the benzene unit. It consists primarily of hydrogen with various small amounts of carbon monoxide and hydrocarbons having carbon numbers in the range of C1 through C6.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

NLM Resources (File Locators)

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Other Resources (Internet Locators)

Names and Synonyms


  • EINECS 270-748-2
  • Recycle gas-in benzene unit

Systematic Names

  • Gases (petroleum), benzene unit recycle hydrogen-rich
  • Gases (petroleum), benzene unit recycle, hydrogen-rich
  • Gases, petroleum, benzene unit recycle, hydrogen-rich

Superlist Name

  • Gases, (petroleum), benzene unit recycle, hydrogen-rich

Registry Numbers

CAS Registry Number

  • 68477-67-8

System Generated Number

  • 0068477678