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Chemical compound From Wikipedia, the free encyclopedia
Stearidonic acid (SDA: C18H28O2; 18:4, n-3) is an ω-3 fatty acid, sometimes called moroctic acid.
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Preferred IUPAC name
(6Z,9Z,12Z,15Z)-Octadeca-6,9,12,15-tetraenoic acid | |
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3D model (JSmol) |
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.127.224 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C18H28O2 | |
Molar mass | 276.420 g·mol−1 |
Density | 0.9334 g/cm3 (15 °C) |
Melting point | 200 °C (392 °F; 473 K) decomposition |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It is biosynthesized from alpha-linolenic acid (ALA: C18H30O2; 18:3, n-3) by the enzyme delta-6-desaturase, which removes two hydrogen (H) atoms.
Stearidonic acid is a precursor to eicosapentaenoic acid.[1]
As it is a precursor to other fatty acids, there has been efforts to enhance the content off stearidonic acid in various crops, such as soybeans.[2]
SDA is also a precursor to N-acylethanolamine (NAEs).[3][4] Natural sources of this fatty acid are the seed oils of hemp, blackcurrant, corn gromwell,[5] and Echium plantagineum, and the cyanobacterium Spirulina. SDA can also be synthesized in a lab. A GMO soybean source is approved by the European Food Safety Authority.[6]
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