Deoxyribose

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Structural formula
Structure of deoxyribose
General
Surname Deoxyribose
other names
  • 2-deoxy-β- D -ribofuranose
  • 2-deoxy-β- D -erythropentofuranose
  • (2 R , 4 S , 5 R ) -5- (hydroxymethyl) tetrahydrofuran-2,4-diol
Molecular formula C 5 H 10 O 4
Brief description

colorless solid

External identifiers / databases
CAS number
  • 36792-88-8 (β- D -2-deoxyribose)
  • 36792-85-5 (α- D -2-deoxyribose)
  • 533-67-5 (2-deoxy- D -ribose)
PubChem 439576
ChemSpider 388661
Wikidata Q192454
properties
Molar mass 134.13 g mol −1
Physical state

firmly

Melting point

89 ° C

solubility

soluble in water

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Deoxyribose ( English deoxyribose ) is a sugar consisting of five carbon atoms , a pentose . In contrast to ribose , in 2-deoxyribose the OH group on the second carbon atom is substituted by an H atom ( deoxy means without oxygen ). In aqueous solution it is mainly present as deoxyribopyranose .

If “deoxyribose” is mentioned in this text or in the scientific literature without any additional name ( prefix ), D -deoxyribose is meant and not the less important L -deoxyribose.

Chemical equilibrium

Deoxyribose is in the furanose form a basic building block of deoxyribonucleic acid (DNA / DNA) and was discovered by Phoebus Levene in 1929 .

See also

Web links

Commons : Desoxyribose  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d data sheet 2-Deoxy-D-ribose, 97% from Sigma-Aldrich , accessed on December 1, 2019 ( PDF ).
  2. ↑ Data sheet 2-Deoxy-D-ribose, 99% from AlfaAesar, accessed on June 18, 2019 ( PDF )(JavaScript required) .
  3. ^ PA Levene and ES London: The Structure of Thymonucleic Acid. J. Biol. Chem. 1929, 83. Pages 793-802.