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    4ARM PEG Raw Materials - JenKem Techology
    4-Arm PEG-VS (Polyethylene Glycol-Vinylsulfone) is a multi-functional polymer with four reactive arms, each ending in a vinylsulfone (VS) group, used for bioconjugation, creating PEG hydrogels, drug delivery, and surface modification by selectively reacting with free thiol (-SH) groups on proteins/peptides at physiological pH (6.5-8.5). This versatile material is a popular choice for biomedical applications like tissue engineering and controlled release, offering a stable link through thiol-Michael addition. 
    Key Features & Properties 
    • Structure: A core (often pentaerythritol) with four PEG chains, each terminated with a VS group.
    • Reactivity: The VS group reacts specifically with thiol groups (cysteine residues, etc.) via Michael addition in aqueous buffers.
    • Applications: Hydrogel formation, protein/peptide PEGylation, nanoparticle functionalization, drug delivery systems, and cell culture scaffolds.
    • Mechanism: Forms stable thioether bonds with thiols, making it ideal for bioconjugation.
    • Availability: Comes in various molecular weights (e.g., 2K, 5K, 10K, 20K Da). 
    Common Uses 
    • PEG Hydrogels: Used as a crosslinker to form injectable hydrogels for regenerative medicine and drug delivery.
    • Bioconjugation: Attaching PEG to proteins/peptides for improved pharmacokinetics (PEGylation).
    • Tissue Engineering: Creating scaffolds that support cell adhesion and growth. 
    How it Works 
    When mixed in solution, the vinylsulfone groups on the 4-Arm PEG-VS readily attack free thiol groups on biomolecules or other polymers, creating strong covalent bonds and forming complex networks (like hydrogels) or conjugated structures (like PEGylated proteins). 
    • 4-Arm PEG-VS MW 20k - Creative PEGWorks
      4-Arm PEG-Vinylsulfone, or 4-Arm PEG-VS, is a multi-armed PEG reagent with four thiol reactive vinylsulfone (VS) groups. VS select...
      Creative PEGWorks
    • 4-Arm PEG Vinylsulfone (4-Arm-PEG-VS) (1g) - Biomaterials USA
      Description. 4Arm-PEG-VS is a homo-multi-functional PEG reagent with a thiol reactive vinylsulfone group on each arm. VS group sel...
      Biomaterials USA
    • 4arm PEG Vinylsulfone - JenKem Technology USA
      JenKem Technology's 4arm PEG Vinylsulfone derivatives can be cross-linked into PEG hydrogels. PEG hydrogels have a variety of appl...
      JenKem Technology USA
    • 4arm-PEG10K - Sigma-Aldrich
      General description. 4arm PEG Vinylsulfone. Hydrogel PEG. VS binds free thiol groups in aqueous buffer between pH 6.5~8.5 at room ...
      Sigma-Aldrich
    • 4arm-PEG10K - Sigma-Aldrich
      Description * General description. 4arm PEG Vinylsulfone. Hydrogel PEG. VS binds free thiol groups in aqueous buffer between pH 6.
      Sigma-Aldrich
    • Novel Multi-arm PEG-based Hydrogels for Tissue Engineering - PMC
      The authors also seeded human adipose-derived stem cells (ASCs) onto the hydrogels to assess their biological performance. The aut...
      National Institutes of Health (NIH) | (.gov)
    • 4-arm Poly(ethylene glycol) vinylsulfone [4-arm PEG-VS]
      4-arm Poly(ethylene glycol) vinylsulfone (4-arm PEG-VS) is available with molecular weight 2K, 5K, 10K, 20K and 40K Da, other M.W.
      SINOPEG
    • 4-Arm PEGs - CD Bioparticles
      4-arm PEG is a multi-arm PEG, and each of the arms can have a functional group connected to the end and is connected to a hexaglyc...
      www.cd-bioparticles.net
    • 4-Arm PEG-VS MW 20k - Creative PEGWorks
      4-Arm PEG-Vinylsulfone, or 4-Arm PEG-VS, is a multi-armed PEG reagent with four thiol reactive vinylsulfone (VS) groups. VS select...
      Creative PEGWorks
    • 4-Arm PEG Vinylsulfone (4-Arm-PEG-VS) (1g) - Biomaterials USA
      Description. 4Arm-PEG-VS is a homo-multi-functional PEG reagent with a thiol reactive vinylsulfone group on each arm. VS group sel...
      Biomaterials USA
    • 4arm PEG Vinylsulfone - JenKem Technology USA
      JenKem Technology's 4arm PEG Vinylsulfone derivatives can be cross-linked into PEG hydrogels. PEG hydrogels have a variety of appl...
      JenKem Technology USA
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    4-Arm PEG-VS, MW 10k


    Creative PEGWorks
    https://creativepegworks.com › Products › PEG Products
    Creative PEGWorks
    https://creativepegworks.com › Products › PEG Products
    4-Arm PEG-Vinylsulfone, or 4-Arm PEG-VS, is a multi-armed PEG reagent with four thiol reactive vinylsulfone (VS) groups. VS selectively reacts with free thiol, ...Read more
    $300.00 · In stock · Free delivery

    4-Arm PEG Vinylsulfone (4-Arm-PEG-VS) (5g)


    Biomaterials USA
    https://www.biomaterialsusa.com › Shop
    Biomaterials USA
    https://www.biomaterialsusa.com › Shop
    4Arm-PEG-VS is a homo-multi-functional PEG reagent with a thiol reactive vinylsulfone group on each arm. VS group selectively reacts with free thiol, SH, ...Read more
    $900.00 · In stock

    4arm PEG Vinylsulfone


    JenKem Technology USA
    https://jenkemusa.com › product › 4arm-peg-vinylsulfo...
    JenKem Technology USA
    https://jenkemusa.com › product › 4arm-peg-vinylsulfo...
    JenKem Technology's 4 arm PEGs are synthesized by ethoxylation of pentaerythritol. The number of ethylene oxide units in the PEG chain may not be equal for all ...Read more
    $150.00 · In stock

    4arm-PEG10K average M<sub>N ...


    Sigma-Aldrich
    https://www.sigmaaldrich.com › aldrich › jka7005
    Sigma-Aldrich
    https://www.sigmaaldrich.com › aldrich › jka7005
    4arm-PEG10K average MN 10000, Vinylsulfone, thiol reactive Synonyms: 4arm-PEG-Vinylsulfone,4arm-PEG-VS,Polyethylene glycol; Linear Formula: ...
    $594.00 · In stock · $23.16 delivery

    4-arm Poly(ethylene glycol) vinylsulfone [4-arm PEG-VS]


    SINOPEG
    https://www.sinopeg.com › 4-arm PEG
    SINOPEG
    https://www.sinopeg.com › 4-arm PEG
    4-arm Poly(ethylene glycol) vinylsulfone (4-arm PEG-VS) is available with molecular weight 2K, 5K, 10K, 20K and 40K Da, other M.W. may be available by custom ...Read more

    4-arm PEGs - Nanosoft Polymers


    nanosoftpolymers.com
    https://www.nanosoftpolymers.com › functional-pegs
    nanosoftpolymers.com
    https://www.nanosoftpolymers.com › functional-pegs
    4-Arm PEGs is a family of multi-arm polyethylene glycol with hydroxyl groups at each terminal of the four arms. Pentaerythritol core is used in 4arm PEG raw ...Read more

    Novel Multi-arm PEG-based Hydrogels for Tissue Engineering


    National Institutes of Health (NIH) | (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC2811768
    National Institutes of Health (NIH) | (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC2811768
    by H Tan · 2010 · Cited by 116 — The 4-arm PEG hydrogel resulted in enhanced cell adhesion as compared to the 8-arm PEG hydrogel. Overall, these characteristics provide a potential opportunity ...Read more

    4-Arm PEGs - CD Bioparticles


    cd-bioparticles.net
    https://www.cd-bioparticles.net › ... › PEG Conjugations
    cd-bioparticles.net
    https://www.cd-bioparticles.net › ... › PEG Conjugations
    4-arm PEG is a multi-arm PEG, and each of the arms can have a functional group connected to the end and is connected to a hexaglyceride core.Read more
    $80 delivery

    4arm PEG Vinylsulfone, MW 20K


    AxisPharm
    https://axispharm.com › ... › 4arm PEG Vinylsulfone
    AxisPharm
    https://axispharm.com › ... › 4arm PEG Vinylsulfone
    4arm PEG Vinylsulfone(4arm PEG VS), MW 20K is a 4arm PEG derivative with multiple reactive groups, the number of ethylene oxide units in the PEG chain may ...
    $300.00 · In stock · 30-day returns

    Multi-Arm PEGs


    Biopharma PEG
    https://www.biochempeg.com › product
    Biopharma PEG
    https://www.biochempeg.com › product
    Multi-arm PEG derivatives can be cross-linked into hydrogels. PEG hydrogels have a variety of applications in medical devices and regenerative medicine.Read more

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