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Substance Name: Gases (petroleum), hydrogen-rich
RN: 68477-97-4


  • TSCA Definition 2018: A complex combination separated as a gas from hydrocarbon gases by chilling. It consists primarily of hydrogen with various small amounts of carbon monoxide, nitrogen, methane, and C2 hydrocarbons.

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

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Names and Synonyms


  • EINECS 270-780-7
  • H2 Rich gas

Systematic Names

  • Gases (petroleum), hydrogen-rich
  • Gases, petroleum, hydrogen-rich

Superlist Name

  • Gases, (petroleum), hydrogen-rich

Registry Numbers

CAS Registry Number

  • 68477-97-4

System Generated Number

  • 0068477974