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Biochemicals

Lipids & Fatty Acids

Phospholipids, fatty alcohols, fatty acid esters and natural plant oils for liposome work, membrane research, formulation and analysis.
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Lipids form membranes, store energy and carry signals, and they are central to liposome and lipid nanoparticle formulation. This sub-category spans synthetic phospholipids, natural lipid extracts, fatty alcohols and esters, and plant oils. Products include 1,2-Dioleoyl-sn-glycero-3-phosphocholine (DOPC) ≥99%, 1,2-Dimyristoyl-rac-glycero-3-phosphocholine, 3-sn-Lysophosphatidylethanolamine from egg yolk, 1-Octadecanol, Butyl oleate and almond and anise oils.

For formulation work, check acyl chain composition, phase transition temperature and oxidation state. Unsaturated lipids such as DOPC oxidise in air, so peroxide value and storage history matter. Natural oils vary with origin and processing, which shows in acid value and fatty acid profile. Ask for a recent lot COA if your formulation is sensitive to these figures.

Phospholipids are packed under inert gas and shipped cold. Oils and fatty alcohols travel at ambient temperature in sealed glass or HDPE. Every lot comes with a COA and SDS, and pharmacopoeial grade documentation is available where the grade exists.

Lipids & Fatty Acids: questions buyers ask

How should unsaturated phospholipids be stored?
Store them at or below minus 20 °C under argon or nitrogen, protected from light. Unsaturated chains oxidise in air and form peroxides that change membrane properties. Warm sealed vials to room temperature before opening, take what you need quickly and flush the headspace with inert gas before resealing.
What is the phase transition temperature and why does it matter?
It is the temperature at which a lipid bilayer changes from an ordered gel to a fluid state. DMPC transitions near 24 °C, while DOPC is fluid well below room temperature. Liposome preparation, drug release and membrane studies all depend on working above or below this temperature.
Can I get natural oils with a fatty acid profile on the COA?
Many natural oils can be supplied with acid value, peroxide value and saponification value, and a GC fatty acid profile can often be provided on request. These figures help confirm identity and freshness. State the parameters you need on your enquiry so we can confirm what the lot documentation will include.

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