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Substance Name: Ribonucleic acid
RN: 63231-63-0


  • A polynucleotide consisting essentially of chains with a repeating backbone of phosphate and ribose units to which nitrogenous bases are attached. RNA is unique among biological macromolecules in that it can encode genetic information, serve as an abundant structural component of cells, and also possesses catalytic activity. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed).

Molecular Formula

  • Unspecified

Classification Code

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Links to Resources

Names and Synonyms

Name of Substance

  • Ribonucleic acid
  • RNA

MeSH Heading

  • RNA


  • Pentosenucleic acids
  • Ribonucleic acids
  • RNA

Systematic Names

  • Nucleic acids, ribo-
  • Ribonucleic acids

Registry Numbers

CAS Registry Number

  • 63231-63-0

Other Registry Numbers

  • 9009-85-2
  • 9010-74-6
  • 9046-65-5
  • 9046-66-6

System Generated Number

  • 0063231630


Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD intraperitoneal > 1500mg/kg (1500mg/kg)   Annals of the New York Academy of Sciences. Vol. 60, Pg. 251, 1954.