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Small-molecule Methoxy Linear PEG (mPEG)

Cat. No. Product Name CAS No.
BPG-1822 mPEG4-propyne 1101668-39-6 Inquiry
BPG-1820 mPEG4-MS 74654-05-0 Inquiry
BPG-1810 m-PEG4-COOH 67319-28-2 Inquiry
BPG-1802 mPEG4-azide 606130-90-9 Inquiry
BPG-1788 mPEG4-thiol 52190-55-3 Inquiry
BPG-1781 Tetraethylene glycol dimethyl ether 143-24-8 Inquiry
BPG-1780 mPEG3-albacol Inquiry
BPG-1777 mPEG3-acetic acid 16024-60-5 Inquiry
BPG-1772 mPEG4-aldehyde 197513-96-5 Inquiry
BPG-1757 mPEG4-alcohol 23783-42-8 Inquiry
BPG-1755 mPEG4-amine 85030-56-4 Inquiry
BPG-1753 mPEG2-hydrazide 1442104-10-0 Inquiry
BPG-1747 mPEG3-propyne 89635-82-5 Inquiry
BPG-1737 m-PEG3-COOH 209542-49-4 Inquiry
BPG-1736 Hydroxy-PEG2-methyl ester 457897-73-3 Inquiry
BPG-1730 mPEG3-azide 74654-06-1 Inquiry
BPG-1726 mPEG2-bromide 54149-17-6 Inquiry
BPG-1724 mPEG3-thiol 31521-83-2 Inquiry
BPG-1721 mPEG3-aldehyde Inquiry
BPG-1715 Triethylene glycol monomethyl ether 112-35-6 Inquiry

Small-molecule methoxy linear PEG (mPEG) is a polymer with a PEG chain with reactive groups at one end and a methoxy group at the other. It typically has a lower molecular weight and offers greater reactivity and modification flexibility. Small-molecule methoxy linear PEG (mPEG) has excellent solubility, biocompatibility, long cyclic half-life and modifiability, making it a promising candidate for a wide range of applications in drug delivery, nanomedicine, materials science, and biomedical research, etc.

BOC Sciences provides customers with high-purity, high-quality and homogeneous small-molecule methoxy linear PEG (mPEG) products. This type of polymer can be combined with various functional groups such as carboxyl, amino, azide, hydrazide, etc., which gives small-molecule methoxy linear PEG (mPEG) a wealth of functionalities.

Structural Features of Small-molecule Methoxy Linear PEG (mPEG)

  • Linear structure - mPEG is a linear polymer with high flexibility and plasticity.
  • Degree of polymerization - mPEG consists of glycol units (-OCH2CH2-) repeatedly linked, and the degree of polymerization can be adjusted as needed. The higher the degree of polymerization, the higher the molecular weight of the mPEG, and its physical and chemical properties will vary.
  • Methoxy groups - Methoxy groups give mPEG good water solubility and biocompatibility, while also helping to modify its chemical reactivity and interactions.
  • End groups - The end groups of mPEG can be chemically modified, which can adjust the properties and functions of mPEG.

Preparation of Small-molecule Methoxy Linear PEG (mPEG)

preparation-of-small-molecule-methoxy-linear-peg-mpeg

Pretreatment Experiments

The methoxy glycol is reacted with an amount of base to remove impurities and acidic components from it.

Preparation of Activator

Appropriate activators such as dicyclohexylcarbodiimide (DCC) or 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC) are selected for promoting the reaction between methoxyglycol and polyethylene glycol monomers.

Polymerization Reaction

The activator is added to the pretreated methoxyethylene glycol and the polyethylene glycol monomer (e.g., ethylene glycol) is added for the reaction. The reaction time and temperature are determined based on the specific reaction conditions and the desired molecular weight of the mPEG.

Purification and Extraction

The resulting reaction mixture needs to be purified and extracted to remove unreacted substances, by-products and other impurities.

Advantages of Small-molecule Methoxy Linear PEG (mPEG)

  • Permeability
    Small-molecule methoxy linear PEG (mPEG) has a relatively small molecular weight, which can penetrate biological barriers more easily and has a permeation enhancement effect, which can improve the efficiency and effectiveness of drug delivery.
  • Reduce Drug Immunogenicity
    Small-molecule methoxy linear PEG (mPEG) reduces the interaction between the drug and the immune system by binding to the surface of the drug molecule, thus reducing the immunogenicity of the drug.
  • Controlled Release Properties
    By adjusting the covalent binding or physical adsorption of small-molecule methoxy linear PEG (mPEG) to the drug, precise control of the rate and pattern of drug release can be achieved. This is important for the design and optimization of drug-controlled release systems to achieve sustained drug release and reduced drug dose frequency.

BOC Sciences offers mPEG derivatives with various functional groups such as amines (NH2), thiols (SH), azides (N3), NHS esters, maleimides (Mal), and more. You can find the ideal small-molecule methoxy linear PEG (mPEG) for the development of your project. If you don't find the product you need in our online catalog, contact us and we can provide you with a custom synthesis of the product.

Why BOC Sciences?

  • Large Stock

    More than 2000+ products in inventory

  • Global Delivery

    Warehouses in multiple cities to ensure fast delivery

  • mg to kg

    Multi specification for academic research and industrial production

  • 24/7 Technical Support

    Strict process parameter control to ensure product quality

Our Feature

BOC Sciences supplies a unique variety of PEG derivatives and functional PEG polymers. Our products offer the most diverse collection of reactivity, ready-to-use functionality, and molecular weight options that you will not find anywhere else.

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PEGylation of Peptides and Proteins

PEGylation of Peptides
and Proteins

Reduce the Immunogenicity of Peptide/Protein Drugs

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APPLICATIONS

APPLICATIONS

PEG linkers For Drug

Improved Circulation Half-Life

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