LBF18109SC01

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Upper classes: LB LBF



9-Octadecylenic acid
LBF18109SC01.png
Structural Information
cis-9-Octadecenoic acid
  • 9-Octadecylenic acid
  • Oleic acid
  • cis-9-Octadecenoic acid
Formula C18H34O2
Exact Mass 282.255880332
Average Mass 282.46136
SMILES CCCCCCCCC=CCCCCCCCC(O)=O
Physicochemical Information
12°C [labile] / 16°C [stable]
234°C at 15 mmHg
dX420 0.898
1.45823 at 20°C
soluble in acetone , alcohol, chloroform, ether and petroleum ether
Generally considerd to be predominant fatty acid in nature (few fats known to contain less than 10%; Separation from olive oil by double fraction via urea adduct. Major constituent in plant oils e.g. olive oil (about 80%), almond oil (about 80%), mainly as glyceride.
Purest product (98%) obtained when the oil was saponified with 3% KOH solution; Synthesis
In animals oleic acid is synthsized from stearoyl CoA by oxidative desaturation using O2, NADPH, cytochrome b5. Oleic acid is further metabolized to 20:9n-9 via reactions of desaturation and elongation. Essential fatty acid deficincy causes the accumulation of 20:9n-9.
Spectral Information
Mass Spectra
LBF18109SC01SP0001.gif
(provided by Dr. Takeshi Kasama).
UV Spectra
IR Spectra
NMR Spectra
Other Spectra
Chromatograms Gas liquid chromatogram
LBF18109SC01CH0001.gif

LBF18109SC01CH0002.gif
(provided by Dr. Akiko Horiuchi).