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). PEI MAX 4000 contains a longer contiguous ethyleneimine segments resulting in more than 11% additional free (protonable) nitrogens than PEI 2500.
PEI MAX 4000 is supplied as a hydrochloride salt for ease of handling and high water solubility. PEI MAX 4000 can be converted into the linear free amine (PEI) form by neutralization with base.
See Transporter™ 5 Transfection Reagent for our ready-to-use PEI derivative.
- Molecular Weight:
- 4,000 (~2,200 free base)
- Soluble In:
- Cold and room temperature water
Insoluble in: Common organic solvents (ethanol, acetone, tetrahydrofuran)
- White to off-white free flowing solid
Thomas M, Lu JJ, Ge Q, Zhang C, Chen J, Klibanov AM. (2005). Full deacylation of polyethylenimine dramatically boosts its gene delivery efficiency and specificity to mouse lung. Proc Natl Acad Sci U S A. 102(16):5679-84.
- Glove, chemical goggles & fume hood
- Store at room temperature