Rhamnose

Rhamnose
Rhamnose[1]
Identifiers
CAS number 10485-94-6 YesY
PubChem 19233
ChemSpider 18150 YesY
UNII QN34XC755A YesY
DrugBank DB01869
KEGG C00507 YesY
ChEBI CHEBI:16055 YesY
Jmol-3D images Image 1
Properties
Molecular formula C6H12O5
Molar mass 164.16 g/mol
Exact mass 164.068473
Melting point

91-93 °C (monohydrate)

 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Rhamnose (Rham) is a naturally occurring deoxy sugar. It can be classified as either a methyl-pentose or a 6-deoxy-hexose. Rhamnose occurs in nature in its L-form as L-rhamnose (6-deoxy-L-mannose). This is unusual, since most of the naturally occurring sugars are in D-form. Exceptions are the methyl pentoses L-fucose and L-rhamnose and the pentose L-arabinose.

Rhamnose can be isolated from Buckthorn (Rhamnus), poison sumac, and plants in the genus Uncaria. High-rhamnose extracts from the latter have found use in anti-wrinkle creams.[2]

Rhamnose is commonly bound to other sugars in nature. It is a common glycone component of glycosides from many plants. Rhamnose is also a component of the outer cell membrane of acid-fast bacteria in the Mycobacterium genus, which includes the organism that causes tuberculosis.[3]

References

  1. ^ Merck Index, 11th Edition, 8171.
  2. ^ "Chemical from tropical flower latest weapon against wrinkles". The Daily Telegraph. February 6, 2011. http://www.telegraph.co.uk/health/healthnews/8306768/Chemical-from-tropical-flower-latest-weapon-against-wrinkles.html. Retrieved January 7, 2011. 
  3. ^ Golan, David E., ed (2005). "Chapter 35 - Pharmacology of the Bacterial Cell Wall". Principles of Pharmacology: The Pathophysiologic Basis of Drug Therapy. Armen H. Tashjian Jr., Ehrin J. Armstrong, Joshua N. Galanter, April Wang Armstrong, Ramy A. Arnaout, Harris S. Rose. Lippincott Williams and Wilkins. p. 569. ISBN 0-7817-4678-7. 

External links


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Look at other dictionaries:

  • Rhamnose — Structure linéaire du D (–) Rhamnose L (+) Rhamnose Général Nom IUPAC (2R,3R,4R,5R,6S) …   Wikipédia en Français

  • rhamnose — ● rhamnose nom masculin Aldose C6H12O5, qui se rencontre dans de nombreux hétérosides, associé à l hespérétine, la quercétine, etc. rhamnose [ʀamnoz] n. m. ÉTYM. 1895, Encycl. Berthelot, art. Isodulcite; 1888, en angl.; du grec rhamnos, lat.… …   Encyclopédie Universelle

  • Rhamnose — (Isodulzit) C6H14O6, wahrscheinlich Methylarabinose O5H9O5.CH3, findet sich in mehreren Glykosiden wie im Querzitrin, Xanthorhamnin, Hesperidin, aus denen es bei Behandlung mit verdünnten Säuren abgespalten wird, bildet farblose Kristalle, löst… …   Meyers Großes Konversations-Lexikon

  • Rhamnose — Rhamnōse, Isodulzit, Zuckerart, findet sich glykosidartig gebunden im Xanthorhamnin und Querzitrin …   Kleines Konversations-Lexikon

  • rhamnose — [ram′nōs΄] n. [< ModL Rhamnus, genus of shrubs (< Gr rhamnos, buckthorn < IE * werb : see RHABDOCOELE) + OSE1] a methyl pentose, C6H12O5, occurring in many plants as a glycoside …   English World dictionary

  • Rhamnose — Strukturformel Fischer Projektion, offenkettige Darstellung Allgemeines Name …   Deutsch Wikipedia

  • Rhamnose — Rham|no|se, hier L Rhamnose [griech. rhámnos = Kreuzdorn (Bot.); ↑ ose (1)], die; , n; Symbol: Rha; Syn.: 6 Desoxy L mannose: als Bestandteil von Pektin u. a. pflanzlichen Polysacchariden sowie in glykosidisch gebundener Form (als Rhamnosid)… …   Universal-Lexikon

  • rhamnose — ramnozė statusas T sritis chemija apibrėžtis 6 deoksimanozė. formulė CH₃(CHOH)₄CHO atitikmenys: angl. rhamnose rus. рамноза …   Chemijos terminų aiškinamasis žodynas

  • rhamnose — noun Etymology: International Scientific Vocabulary, from New Latin Rhamnus, genus of the buckthorn; from its being produced from a plant of this genus Date: 1888 a crystalline sugar C6H12O5 that occurs usually in the form of a glycoside in many… …   New Collegiate Dictionary

  • rhamnose — (= 6 deoxy L mannose) A sugar found in plant glycosides …   Dictionary of molecular biology

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