5,8,11-Eicosatrienoic acid
CAS 20590-32-3
EC 200-578-6
Formula C20H34O2
MW 306.48 g/mol
Oils, Fats & Waxes Pharmaceuticals & HealthcareFood & NutritionBiotechnology & Life SciencesPersonal Care & Cosmetics Antioxidant & StabilizerHumectant & Moisturizing
Description
5,8,11-Eicosatrienoic acid, commonly known as Mead acid or ETrE, is a naturally occurring omega-9 polyunsaturated fatty acid with the molecular formula C20H34O2 (CAS 20590-32-3, EC 200-578-6). It carries no assigned E-code and is biosynthesised endogenously in mammals under conditions of essential fatty acid deficiency.
In pharmaceutical and nutraceutical formulations, Mead acid functions as a lipid-phase antioxidant stabiliser, helping to protect membrane-mimetic systems against oxidative degradation. In personal care applications, it integrates into emollient matrices where its unsaturated chain structure supports intercellular lipid organisation and moisture retention in skin barrier formulations.
Mead acid is supplied as a research and specialty-grade colorless oil compliant with REACH registration requirements for the European market. Procurement quantities are available in small laboratory packs through to bulk formats; buyers should confirm purity specification and certificate of analysis requirements directly with the supplier prior to order placement.
In pharmaceutical and nutraceutical formulations, Mead acid functions as a lipid-phase antioxidant stabiliser, helping to protect membrane-mimetic systems against oxidative degradation. In personal care applications, it integrates into emollient matrices where its unsaturated chain structure supports intercellular lipid organisation and moisture retention in skin barrier formulations.
Mead acid is supplied as a research and specialty-grade colorless oil compliant with REACH registration requirements for the European market. Procurement quantities are available in small laboratory packs through to bulk formats; buyers should confirm purity specification and certificate of analysis requirements directly with the supplier prior to order placement.
Physical Properties
| Boiling Point | 440.0±24.0 °C(Predicted) |
| Density | 0.917±0.06 g/cm3(Predicted) |
| Flash Point | 14°C |
| Color | Colorless to light yellow |
| Form | Colorless oil. |
Trade & Regulatory
| UN Number | 1170 |
| ADR Class | 3 |
| Packing Group | II |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 3 |
Other Names
Mead acid(5Z,8Z,11Z)-icosa-5,8,11-trienoic acidETrE(5Z,8Z,11Z)C20:3(n-9,12,15)Mead Acid (20:3, n-9)11-Eicosatrienoic acidUNSRRHDPHVZAHH-YOILPLPUSA-N
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