LBF18109SC01: Difference between revisions

Revision as of 16:30, 26 January 2010

Upper classes: LB LBF

9-Octadecylenic acid

Structural Information
	cis-9-Octadecenoic acid
	9-Octadecylenic acid Oleic acid cis-9-Octadecenoic acid
	Ole / C18:1n-9
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	(provided by Dr. Takeshi Kasama).
UV Spectra
IR Spectra
NMR Spectra
Other Spectra
Chromatograms	Gas liquid chromatogram (provided by Dr. Akiko Horiuchi).

@@ Line 15: / Line 15: @@
 |Mass Spectra={{Image200|LBF18109SC01SP0001.gif}} (provided by Dr. Takeshi Kasama).
 |Chromatograms=Gas liquid chromatogram {{Image200|LBF18109SC01CH0001.gif}}{{Image200|LBF18109SC01CH0002.gif}} (provided by Dr. Akiko Horiuchi).
-|Source=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.
+|Source=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<!--4003-->. Major constituent in plant oils e.g. olive oil (about 80%), almond oil (about 80%), mainly as glyceride.
-|Chemical Synthesis=Purest product (98%) obtained when the oil was saponified with 3% KOH solution; Synthesis
+|Chemical Synthesis=Purest product (98%) obtained when the oil was saponified with 3% KOH solution; Synthesis<!--4008-->
 |Metabolism=In animals oleic acid is synthsized from stearoyl CoA by oxidative desaturation using O<SUB><FONT SIZE=-1>2</FONT></SUB>, NADPH, cytochrome b<SUB><FONT SIZE=-1>5</FONT></SUB>. 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.
 |Symbol=Ole / C18:1n-9