Polyethylenimine (PEI)
  1. Polyethylenimine, branched
    Branched Polyethylenimine, Mw 600 (bPEI 600) is highly branched liquid water soluble polyamine with high cationic charge density. bPEI 600 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
  2. Polyethylenimine, Branched, Mw 70,000, 30% w/v aq. soln. (bPEI 70000 30% soln.)
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    Highly branched polyamine with high charge density. Liquid polymers. Polymers contain primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio. 30% soln. in water.

    Polydispersity: 17±5.2

  3. Polyethylenimine, branched (MW 1,200)
    Branched Polyethylenimine, Mw 1,200 (bPEI 1200) is highly branched liquid water soluble polyamine with high cationic charge density. bPEI 1200 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
  4. Polyethylenimine, branched (MW 1,800)
    Branched Polyethylenimine, Mw 1,800 (bPEI 1800) is highly branched liquid water soluble polyamine with high cationic charge density. bPEI 1800 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
  5. Polyethylenimine, branched (MW 50,000-100,000)
    Branched Polyethylenimine,, Mw 70,000, 30% w/v aq. soln. (bPEI 70000 soln.) is highly branched polyamine with high cationic charge density. bPEI 70000 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
  6. Polyethylenimine, Linear, MW 25000, Transfection Grade (PEI 25K™)
    PEI 25K is a powerful, trusted, and cost-effective transient transfection reagent. In HEK293 and CHO expression systems, PEI offers consistently high gene expression on a wide scale (96 well plates up to 100 L bioreactors). Each year, more researchers and companies turn to Polysciences PEI to gain a critical edge in their work. Relative to most other options, using PEI to prepare transfection reagents in-house can offer as much as a 40% reduction in total transfection costs.
  7. PEI MAX® - Transfection Grade Linear Polyethylenimine Hydrochloride (MW 40,000)

    Polyethylenimine “Max” (PEI MAX) is a highly efficient transfection reagent which is compatible for a wide range of cell lines/types including the most commonly used HEK293 and CHO cells grown in adherent and suspension cultures.

  8. Polyethylenimine Hydrochloride, Linear (MW 4,000)

    Polyethylenimine HCl MAX, Linear, Mw 4,000 (PEI MAX® 4000) is a fully hydrolyzed (deacylated), highly water soluble hydrochloride salt form of our Polyethylenimine, Linear, Mw 2,500 (PEI 2500, Catalog # 24313).

  9. Polyethylenimine Hydrochloride, Linear (MW 160,000)

    Linear Polyethylenimine HCl MAX, Mw 160,000 (PEI MAX® 160000) is a fully hydrolyzed (deacylated), highly water soluble hydrochloride salt form of our Linear Polyethylenimine, Mw 100,000 (PEI 100000, Catalog # 25414).

  10. Polyethylenimine, Branched, Mw 10,000, 30% w/v aq. soln. (bPEI 10000 30% soln.)
    Branched Polyethylenimine, Mw 10,000, 30 % w/v aq. soln. (bPEI 10000 30% soln.) is highly branched polyamine with high cationic charge density. bPEI 10000 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
  11. Polyethylenimine, Linear, MW 100,000

    Linear polyethylenimines (PEIs) contain all secondary amines, in contrast to branched PEIs which contain primary, secondary and tertiary amino groups.

    The linear PEIs are solids at room temperature where branched PEIs are liquids at all molecular weights.

    Insouble in: benzene, ethyl ether, acetone and cold water.

  12. Polyethylenimine, Linear, MW 2,500 (PEI 2500)

    Linear polyethylenimines (PEIs) contain all secondary amines, in contrast to branched PEIs which contain primary, secondary and tertiary amino groups.

    The linear PEIs are solids at room temperature where branched PEIs are liquids at all molecular weights.

    Insoluble in bezene, ethyl ether, acetone, and cold water.

  13. Polyethylenimine, Linear, MW 250,000 (PEI 250000)
    Linear polyethylenimine (PEI) is a high-charge cationic polymer that readily binds highly anionic substrates. Industrially, linear PEI can improve the appearance of negatively charged dyes by modulating their properties and improving their adherence to surfaces.
  14. Polyethylenimine, Branched, Mw 10,000 (bPEI 10000)
    Branched Polyethylenimine, Mw 10,000 (bPEI 10000) is highly branched liquid water soluble polyamine with high cationic charge density. bPEI 10000 contains primary, secondary, and tertiary amine groups in approximately 25/50/25 ratio.
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