Dihomo-γ-linolenic acid (DGLA) is a 20-carbon ω−6 fatty acid. In physiological literature, it is given the name 20:3 (ω−6). DGLA is a carboxylic acid with a 20-carbon chain and three cis double bonds; the first double bond is located at the sixth carbon from the omega end. DGLA is the elongation product of γ-linolenic acid (GLA; 18:3, ω−6). GLA, in turn, is a desaturation product of linoleic acid (18:2, ω−6). DGLA is made in the body by the elongation of GLA, by an efficient enzyme which does not appear to suffer any form of (dietary) inhibition. DGLA is an extremely uncommon fatty acid, found only in trace amounts in animal products.

CAS：1783-84-2
中文别名：顺式-8,11,14-二十碳三烯酸;全顺-8,11,14-二十碳三烯酸;顺-8,11,14-二十碳三烯酸;
英文别名：CIS-8,11,14-EICOSATRIENOIC ACID;all cis-8,11,14-Eicosatrienoic Acid;Methyl cis-8,11,14-eicosatrienoate C20:3;Ro 12-1989;Dihomo-γ-linolenic Acid;all cis-8,11,14-Icosatrienoic Acid;8Z,11Z,14Z-EICOSATRIENOIC ACID;cis,cis,cis-8,11,14-eicosatrienoic acid;cis-8,11,14-Eicosatrienoic acid;w6-Eicosatrienoic acid;DGLA;
分子式：C20H34O2
分子量：306.483
精确质量：306.256
Psa：37.3
Logp：6.4407

EINECS号：217-233-0
BRN号：1796533
MDL号：MFCD00065721

密度：0.917g/cm3
沸点：408.5ºC at 760 mmHg
闪点：144 °F
折射率：n20/D 1.478(lit.)
储存条件：-20ºC
蒸汽压：8.09E-08mmHg at 25°C

安全说明：S23-S24/25