Tariric acid

Tariric acid

Chemical structure of tariric acid
Names
IUPAC name octadec-6-ynoic acid
Other names 6-octadecynoic acid
Identifiers
CAS Number	544-74-1
ChemSpider	205669
Jmol 3D model	Interactive image
PubChem	235711
InChI InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-11,14-17H2,1H3,(H,19,20) Key: GVZXZHWIIXHZOB-UHFFFAOYSA-N InChI=1/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-11,14-17H2,1H3,(H,19,20) Key: GVZXZHWIIXHZOB-UHFFFAOYAC
SMILES CCCCCCCCCCCC#CCCCCC(=O)O
Properties
Chemical formula	C18H32O2
Molar mass	280.44 g/mol
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Tariric acid is an acetylenic fatty acid that can be found in the tallow-wood tree, Ximenia americana.

Léon-Albert Arnaud (1853–1915) was the first scientist to describe the chemical make-up of tariric acid, an extraction from the glucoside of the "tariri plant" found in Guatemala.

Occurrence

Tariric acid has been found in several oils and fats of plant origin. It was first isolated in 1892 from the seed oil of a species of Picramnia. It appears in Picramnia camboita from Brazil, Picramnia carpinterae from Guatemala, and Picramnia lindeniana from Mexico.

Tariric acid is biosynthesised from petroselinic acid; both fatty acids have been found together in Picramnia and Alvaradoa species. The occurrence of tariric acid as the major fatty acid is typical for the Picramniaceae.

Production and chemical behavior

Tariric acid can be synthesised from commercially available petroselinic acid.

In chemical analysis, tariric acid can be separated from other fatty acids by gas chromatography of methyl esters; additionally, a separation of unsaturated fatty acids is possible by argentation thin-layer chromatography.