Name = Glycolaldehyde
ImageFile = Glycolaldehyde.png
ImageSize = 120px
ImageName = Glycolaldehyde
IUPACName = 2-hydroxyacetaldehyde
Section1 = Chembox Identifiers
CASNo = 141-46-8
ChemSpiderID = 736
SMILES = O=CCO
Section2 = Chembox Properties
Formula = C2H4O2
MolarMass = 60.052 g/mol
Glycolaldehyde (HOCH2-CH=O) is the smallest possible molecule that contains both an
aldehydegroup and a hydroxyl group. It is the only possible diose, a 2-carbon monosaccharide, although a diose is not strictly a saccharide.
Glycolaldehyde is an intermediate in the
Glycolaldehyde forms from many precursors, including the
amino acid glycine. It can form by action of ketolaseon fructose 1,6-bisphosphatein an alternate glycolysis pathway. This compound is transferred by thiamine pyrophosphateduring the pentose phosphate shunt.
In purine catabolism,
xanthineis first converted to urate. This is converted to 5-hydroxyisourate, which decarboxylates to allantoinand allantoic acid. After hydrolyzing one urea, this leaves glycolureate. After hydrolyzing the second urea, glycolaldehyde is left. Two glycolaldehydes condense to form erythrose4-phosphate, which goes to the pentose phosphate shunt again.
Glycolaldehyde was identified in many other
planets and also at the middle of the Milky Way. Although technically not sugar, the discovery of interplanetary glycolaldehyde has been reported in many publications as "sugar found in space".
*cite news | title=Cold Sugar in Space Provides Clue to the Molecular Origin of Life | publisher=National Radio Astronomy Observatory | date=
September 20, 2004| url=http://www.nrao.edu/pr/2004/coldsugar/ | accessdate=2006-12-20
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Look at other dictionaries:
Glycolaldehyde — Glycolaldéhyde Glycolaldéhyde Structure du glycolaldéhyde Général Nom IUPAC 2 hydroxyethanal … Wikipédia en Français
Glycolaldéhyde — Structure du glycolaldéhyde Général Nom IUPAC 2 hydroxyethanal … Wikipédia en Français
glycolaldehyde — glikolio aldehidas statusas T sritis chemija formulė HOCH₂CHO atitikmenys: angl. biose; glycolaldehyde rus. биоза; гликолевый альдегид ryšiai: sinonimas – hidroksietanalis … Chemijos terminų aiškinamasis žodynas
glycolaldehyde — noun The hydroxyaldehyde HO CH CHO related to ethylene glycol; the only biose … Wiktionary
glycolaldehyde — HOCH2CHO; the simplest (2 carbon) sugar; the aerobic deamination product of ethanolamine. SYN: diose. active glycoaldehyde 2 (1,2 dihydroxyethyl)thiamin pyrophosphate; a derivative formed in carbohydrate metabolism. * * * gly·col·al·de·hyde .glī… … Medical dictionary
glycolaldehyde — gly·col·aldehyde … English syllables
glycolaldehyde — | ̷ ̷ˌ ̷ ̷+ noun Etymology: International Scientific Vocabulary glycol + aldehyde : a compound that in solution exists as the monomeric hydroxy aldehyde HOCH2CHO and as such is the simplest monosaccharide but that in the anhydrous state exists… … Useful english dictionary
Glycolaldehyde dehydrogenase — In enzymology, a glycolaldehyde dehydrogenase (EC number|18.104.22.168) is an enzyme that catalyzes the chemical reaction:glycolaldehyde + NAD+ + H2O ightleftharpoons glycolate + NADH + 2 H+The 3 substrates of this enzyme are glycolaldehyde, NAD+, and … Wikipedia
141-46-8 — Glycolaldéhyde Glycolaldéhyde Structure du glycolaldéhyde Général Nom IUPAC 2 hydroxyethanal … Wikipédia en Français
Diose — Glycolaldehyde is the only diose A diose is a monosaccharide containing two carbon atoms. Because the general chemical formula of an unmodified monosaccharide is (C·H2O)n, where n is three or greater, it does not meet the formal definition of a… … Wikipedia