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Retinal

Not to be confused with Retinol.
This article is about the molecule. For the anatomical feature, see Retina.
All-trans-retinal
Skeletal formula of retinal
Ball-and-stick model of the retinal molecule
Names
IUPAC name
Retinal
Systematic IUPAC name
(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenal
Other names
  • Retinene
  • Retinaldehyde
  • Vitamin A aldehyde
  • RAL
Identifiers
  • 116-31-4 checkY
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.003.760
UNII
  • CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C/C(=C/C=O)/C)/C
Properties
C20H28O
Molar mass 284.44 g·mol−1
Appearance Orange crystals from petroleum ether[1]
Melting point 61 to 64 °C (142 to 147 °F; 334 to 337 K)[1]
Nearly insoluble
Solubility in fat Soluble
Related compounds
Related compounds
 retinol; retinoic acid; beta-carotene; dehydroretinal; 3-hydroxyretinal; 4-hydroxyretinal
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Retinal (also known as Retinaldehyde) is a hydrocarbon belonging to the aldehyde group. It is commonly used as a skincare product.

References

  1. ↑ 1.0 1.1 Merck Index, 13th Edition, 8249




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