Octadecatetraenoic acid

An octadecatetraenoic acid is a chemical compound with formula C
18
H
28
O
2
, a polyunsaturated fatty acid whose molecule has an 18-carbon unbranched backbone with four double bonds.[1]

(9Z,11E,13E,15Z)-Octadeca-9,11,13,15-tetraenoic acid (α-parinaric acid)

The name refers to different structural and configurational isomers, that differ in the position of the double bonds and on whether they are in cis (Z) or trans (E) configuration. Some isomers have considerable biological, pharmaceutical, or industrial importance, such as:

References

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