4-hydroxynonenal

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Structural formula
Structure of trans-4-hydroxy-2-nonenal
Structural formula of the ( E ) -form with incomplete stereochemistry
General
Surname 4-hydroxynonenal
other names
  • 4-HNE
  • HNE
  • trans -4-hydroxy-2-nonenal
  • ( E ) -4-hydroxy-2-nonenal
  • ( S ) - ( E ) -4-hydroxy-2-nonenal
  • ( RS ) - ( E ) -4-hydroxy-2-nonenal
Molecular formula C 9 H 16 O 2
External identifiers / databases
CAS number 75899-68-2
PubChem 5283344
Wikidata Q229982
properties
Molar mass 156.22 g mol −1
Physical state

liquid

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

4-hydroxynonenal is a reactive α, β-unsaturated aldehyde selected from the lipid peroxidation multiple unsaturated fatty acids (engl. Polyunsaturated fatty acids - PUFAs ) produced. During this process, proteins are in turn modified under conditions of oxidative stress , i. H. damaged.

history

4-HNE was characterized by Hermann Esterbauer and since then a large number of publications on this substance have appeared.

Biological importance

4-HNE has been linked to various diseases, especially Alzheimer's , cancer and arteriosclerosis .

Isomerism

4-Hydroxynonenal contains an asymmetrically substituted carbon-carbon double bond and an additional stereogenic center. Hence there are four isomeric compounds:

  • ( E , R ) -4-hydroxynonenal,
  • ( E , S ) -4-hydroxynonenal,
  • ( Z , R ) -4-hydroxynonenal and
  • ( Z , S ) -4-hydroxynonenal.

Individual evidence

  1. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  2. Mikel R. Roe, Hongwei Xie, Sricharan Bandhakavi and Timothy J. Griffin: Using complementary hydrazide chemistry based methods with precursor-ion scanning to characterize potential in vivo sites of HNE modification , ASMS 2006, engl.
  3. Esterbauer, H., Schaur, RJ, Zollner, H. Chemistry and biochemistry of 4-hydroxynonenal, malonaldehyde and related aldehydes. Free Rad Biol Med. 1991; 11: 8-1128.

Web links

  • HNE club - an interest group for HNE research