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Oleic acid monoethanolamide 7 EO (internationally known as PEG-7 Oleamide) is a non-ionic surfactant and ethoxylated fatty acid amide with the CAS number 26027-37-2.
Oleic acid monoethanolamide 7 EO is commonly used as an emulsifier, stabilizer, and antistatic agent.
Oleic acid monoethanolamide 7 EO is a specialized non-ionic surfactant and ethoxylated fatty amide characterized by a lipophilic oleic acid tail and a short, hydrophilic three-unit polyethylene glycol (PEG) chain.
CAS: 26027-37-2
MF: (C2H4O)nC20H39NO2
Synonyms
(Z)-N-[2-[2-(2-hydroxyethoxy)ethoxy]ethyl]octadec-9-enamide;(z)-ydroxy;2-ethanediyl),.alpha.-[2-[(1-oxo-9-octadecenyl)amino]ethyl]-.omega.-hydroxy-,(Z)-Poly(oxy-1;Ethoxylatedoleicmonoethanolamide;Ethoxylatedoleoamide;poly(oxy-1,2-ethanediyl),alpha-[2-[(1-oxo-9-octadecenyl)amino]ethyl]-omega-h;Poly(oxy-1,2-ethanediyl), .alpha.-(9Z)-2-(1-oxo-9-octadecenyl)aminoethyl-.omega.-hydroxy-;Poly(oxy-1,2-ethanediyl), alpha-[2-[(1-oxo-9-octadecenyl)amino]ethyl]-omega-hydroxy-, (Z)-
This specific structural balance yields a low Hydrophilic-Lipophilic Balance (HLB) value, typically in the range of 6.0 to 8.0, classifying it as a highly effective water-in-oil (W/O) emulsifier and dispersant.
In industrial and cosmetic procurement, Oleic acid monoethanolamide 7 EO is primarily sourced for its ability to reduce interfacial tension between immiscible liquids, acting as a critical stabilizer in W/O formulations, a foam booster, and a surface-wetting agent where unmodified fatty amides would fail due to their absolute insolubility in aqueous phases.
