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ALC-0159

CAS NO.:1849616-42-7

Purity: 95% | Packaging information: 1g; 10g; 100g

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Product Name ALC-0159
Synonyms Methoxypoly(ethyleneglycol)ditetradecylacetamide;2-[(polyethyleneglycol)-2000]-N,Nditetradecylacetamide(ALC-0159);Poly(oxy-1,2-ethanediyl),α-[2-(ditetradecylamino)-2-oxoethyl]-ω-methoxy-;2-(2-methoxyethoxy)-N,N-ditetradecylacetamide,ammoniasalt;LipidALC-0159;mPEG-DTA;α-[2-(Ditetradecylamino)-2-oxoethyl]-ω-methoxy-Poly(oxy-1,2-ethanediyl);ALC0159,conjugate,lipid,vaccine,ALC0159,ALC-0159,inhibit,excipient,Inhibitor
CAS NO 1849616-42-7
Purity 98%
Appearance off-white to white silid
MF C44H81NO2
MW 656.12
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ALC-0159 (CAS: 1849616‑42‑7) is a PEGylated lipid (PEG-lipid) widely used in biopharmaceutical applications, especially in mRNA vaccines and lipid nanoparticle (LNP) formulations. Its main functions are:

  1. Stabilizing Lipid Nanoparticles (LNPs)

    • The PEG chain of ALC-0159 attaches to the surface of lipids, providing steric hindrance that prevents nanoparticle aggregation.

    • It enhances the stability and shelf-life of LNPs in solution.

  2. Prolonging Circulation Time / Reducing Immune Clearance

    • The PEG coating reduces protein adsorption (protein corona formation) in the bloodstream, thereby extending the circulation time of lipid nanoparticles.

    • This helps improve the in vivo delivery efficiency of drugs or mRNA.

  3. Modulating Nanoparticle Surface Properties

    • By forming a PEG layer on the LNP surface, ALC-0159 improves particle uniformity and reduces nonspecific adsorption and toxicity.

    • It is typically used in combination with cationic lipids (e.g., ALC-0315), cholesterol, and DSPC in mRNA vaccine formulations.

In summary: ALC-0159 primarily acts as a PEGylated lipid stabilizer, protecting and modulating lipid nanoparticles to enhance their in vivo delivery efficiency and safety.

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