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    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    4-Arm PEG-CM (4-arm Polyethylene glycol carboxymethyl) is a multi-arm, star-shaped polymer featuring four carboxylic acid groups attached to a pentaerythritol core, primarily used as a crosslinker in biomedical applications, including hydrogel formulation, drug delivery, and pharmaceutical R&D. It offers high reactivity (especially with amines via coupling reagents like EDC/NHS), biocompatibility, and high water solubility. 
    Key Characteristics and Applications 
    • Structure: Four arms (each 1/4 of total molecular weight) branching from a central core with terminal -
      CH2
      COOH
       groups.
    • Common Molecular Weights: Typically available in 5KDa, 10KDa, 20KDa, and 40KDa.
    • Reactivity: Carboxylic acid group (CM) readily reacts with amines, suitable for peptide coupling.
    • Applications: Essential for creating PEG hydrogels, modifying drugs, and creating drug-conjugates or biocompatible coatings. 
    Common Suppliers and Specifications 
    • Sinopeg: Offers 4-arm PEG-CM (4-arm PEG-COOH).
    • Laysan Bio / Gannet BioChem: Supplies 10 kDa and 20 kDa formulations.
    • Creative PEGWorks: Offers 4-arm PEG-Acid.
    • Nanosoft Polymers: Supplies 4-arm PEG-carboxylic acid (4-arm PEG-COOH). 
    These products are often available in powder form and are highly purified for scientific research and drug development. 
    To help you find the best match, could you tell me:
    • What molecular weight (e.g., 10k, 20k, 40k) are you looking for?
    • What is the application (e.g., hydrogel formation, drug delivery)?
    • Are you looking for a specific supplier?
     
    Show more

    Web results

    4 Arm PEG-CM


    Gannet BioChem
    https://catalog.gannetbiochem.com › product › 4-arm-p...
    Gannet BioChem
    https://catalog.gannetbiochem.com › product › 4-arm-p...
    4 Arm PEG-Carboxymethyl (4 Arm PEG-CM) is available in molecular weights of 10 kDa and 20 kDa. Packaged in 1 gram and 5 gram bottles.

    4-arm PEG-CM


    SINOPEG
    https://www.sinopeg.com › blog › 4-arm-peg-cm-sinop...
    SINOPEG
    https://www.sinopeg.com › blog › 4-arm-peg-cm-sinop...
    Chapter 1: Basic Information. Name: 4-arm PEG-CM；4-arm Poly(ethylene glycol) carboxylic acid Abbreviation: 4-arm PEG-CM；4-arm PEG-COOH ...Read more

    Multiarm PEGs for Hydrogels - JenKem Technology


    JenKem Technology USA
    https://jenkemusa.com › multi-arm-pegs
    JenKem Technology USA
    https://jenkemusa.com › multi-arm-pegs
    Mar 25, 2026 — JenKem Technology provides high quality activated multi-arm polyethylene glycol derivatives (PEGs) for hydrogels, with high purity and low polydispersity.Read more

    4-arm PEG-CM Manufacturer


    SINOPEG
    https://www.sinopeg.com › 4-arm PEG
    SINOPEG
    https://www.sinopeg.com › 4-arm PEG
    We are professional China 4-arm PEG-CM company,manufacturer 4-arm PEG-CM many years.All PEGs products acquired ISO-9001and ISO-13485 certified.

    4-Arm PEG - Creative PEGWorks | PEG Products Leader


    Creative PEGWorks
    https://creativepegworks.com › Products
    Creative PEGWorks
    https://creativepegworks.com › Products
    Multi-armed PEG reagents functionalized with 4 reactive groups used in PEGylation, hydrogel, crosslinking, coating, nanoparticle, polymer-drug conjugate.Read more

    Synthesis of a fluorescent and star-shaped 4-arm PEG with ...


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by DI Lee · 2012 · Cited by 13 — By conjugating PEG arms to DY, we successfully synthesized a star-shaped 4-arm PEG with two carboxylic acid and two amine groups at its four ends. Two different ...Read more
    Popular products
    • 4-Arm PEG-OPSS, MW 20k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-OPSS, MW 20k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-OPSS, MW 20k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-Arm PEG-SCM.
      4-Arm PEG-SCM
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      NSP-Functional Polymers & Copolymers
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    • 4-Arm PEG-Acrylate MW 5000.
      4-Arm PEG-Acrylate MW 5000
      $175.23
      Biosynth
      4-Arm PEG-Acrylate MW 5000
      $175.23
      Biosynth
    • 4-Arm PEG-SAS, MW 2k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-SAS, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-SAS, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-Way Garment Rack with Slanted Arms.
      4-Way Garment Rack with Slanted Arms
      $127.42
      KC Store Fixtures       & more
      4-Way Garment Rack with Slanted Arms
      $127.42
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    • 4-Arm PEG-Succinamide Acid.
      4-Arm PEG-Succinamide Acid
      $830.00
      CD Bioparticles
      4-Arm PEG-Succinamide Acid
      $830.00
      CD Bioparticles
    • 4-Arm PEG-SAA, MW 2k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-SAA, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-SAA, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-arm PEG-MAL.
      4-arm PEG-MAL
      $300.00
      NSP-Functional Polymers & Copolymers
      4-arm PEG-MAL
      $300.00
      NSP-Functional Polymers & Copolymers

    Web results

    4 Arm Peg


    SINOPEG
    https://www.sinopeg.com › 4-arm-peg_sp
    SINOPEG
    https://www.sinopeg.com › 4-arm-peg_sp
    2-arm Methoxypoly(ethylene glycol)(LYS01). Molecular Weight: 5KDa, 10KDa, 20KDa, 40KDa. Package Size: 1g/bottle, 10g/bottle, 100g/bottle.Read more
    More products
    • 4arm PEG Maleimide.
      4arm PEG Maleimide
      $130.00
      JenKem Technology
      4arm PEG Maleimide
      $130.00
      JenKem Technology
    • 4-Arm PEG-Tosylate, MW 2k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-Tosylate, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-Tosylate, MW 2k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-arm PEG-N3.
      4-arm PEG-N3
      $300.00
      NSP-Functional Polymers & Copolymers
      4-arm PEG-N3
      $300.00
      NSP-Functional Polymers & Copolymers
    • 4-Arm PEG5-DBCO | | Precise PEG 100 mg.
      4-Arm PEG5-DBCO | | Precise PEG 100 mg
      $1,150.00
      Precise PEG
      4-Arm PEG5-DBCO | | Precise PEG 100 mg
      $1,150.00
      Precise PEG
    • 4-Arm PEG-SA, MW 20k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-SA, MW 20k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-SA, MW 20k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-Arm PEG-OMs, 95%, average M.W. 2,000 | 0.
      4-Arm PEG-OMs, 95%, average M.W. 2,000 | 0
      $246.30
      J&K Scientific
      Free delivery
      4-Arm PEG-OMs, 95%, average M.W. 2,000 | 0
      $246.30
      J&K Scientific
      Free delivery
    • 4-Arm PEG-SG, MW 5k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-SG, MW 5k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-SG, MW 5k - Creative PEGWorks | PEG Products Leader
      $300.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    • 4-Arm PEG-Norbornene, MW 2k - Creative PEGWorks | PEG Products Leader.
      4-Arm PEG-Norbornene, MW 2k - Creative PEGWorks | PEG Products Leader
      $335.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
      4-Arm PEG-Norbornene, MW 2k - Creative PEGWorks | PEG Products Leader
      $335.00
      Creative PEGWorks | PEG Products Leader
      Free next-day delivery
    People also ask
    What does PEG 4000 mean?
    An error has occurred. Please try again later.
    What is PEG 4 used for?
    PEG-4 is a universal-purpose surfactant used in the beauty, construction, chemical and food industries. As an ingredient of products, it acts as a humectant, solvent, anti-electrostatic agent and lubricant.

    PEG-4 - PCC Group Product Portal


    pcc.eu
    https://www.products.pcc.eu › inci-names › peg-4
    pcc.eu
    https://www.products.pcc.eu › inci-names › peg-4
    What is the length of a PEG unit?
    PEG consists of repeating ethylene oxide (EO) units (–CH₂CH₂O–), each with a molecular weight of approximately 44 g/mol. The projected length per EO unit in the extended state is typically 0.35 nm, accounting for the zig-zag backbone geometry.

    Hydrodynamic radius of PEG in water - PEG has 2 lengths


    Creative PEGWorks
    https://creativepegworks.com › blog › calculating-the-co...
    Creative PEGWorks
    https://creativepegworks.com › blog › calculating-the-co...
    What is the difference between PEG 400 and PEG 8000?
    Polyethylene Glycol in Consumer Products

    You might find PEG-400 on product labels for personal care products, pharmaceuticals, and food items, or PEG-8000 on cosmetics and cleaning products. The numbers following PEG indicate the ingredient's average molecular weight — PEG-400 is a liquid, while PEG-8000 is a solid.

    A Guide to Polyethylene Glycol (PEG) - Green Seal


    Green Seal
    https://greenseal.org › understanding-ingredients-a-guide...
    Green Seal
    https://greenseal.org › understanding-ingredients-a-guide...

    Web results

    A 4‐Arm PEG‐Thiodepsipeptide Precursor Enables ...


    Wiley Online Library
    https://onlinelibrary.wiley.com › full › mame.202300146
    Wiley Online Library
    https://onlinelibrary.wiley.com › full › mame.202300146
    by MY Folikumah · 2023 — It is shown that hydrolytic enzymes can be used to initiate the formation of covalent hydrogel networks, realizing a cleavage-leading-to-gelation strategy.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
    Missing: CM ‎| Show results with: CM

    How do you reduce the gelling time of 4 arm peg ...


    ResearchGate
    https://www.researchgate.net › post › How_do_you_red...
    ResearchGate
    https://www.researchgate.net › post › How_do_you_red...
    Mar 17, 2015 — I'm trying to slow down the gelling of 4 arm peg maleimide crosslinked with peg dithiol. I'm using (at the moment) 20 kDa 4 arm peg maleimide + ...Read more
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